m******h
发帖数: 5753 | 1 找到答案了
Boat Battery Buying Guide
written by Keith Sutton
Confused about marine batteries? This guide will help you sort through the
different types and choose the ideal battery for the task at hand.
Marine Battery Buying Guide
Understanding the different types of marine batteries available and their
applications will help you select the right battery to power your rig.
Selecting a new 12-volt marine battery for your boat can be a daunting task
for first-time buyers. Many types are availab... 阅读全帖 |
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b***i
发帖数: 10018 | 2 http://www.letsrun.com/forum/flat_read.php?thread=4519027&page=
Looking the posts from jaguar1:
I did my Master's thesis on enhancing bone recovery with whole body
vibration training-- basically a low-magnitude, high frequency stimulus. You
could equate this to ~walking, standing, low-intensity running. Low
intensity activity is both safer and more anabolic to both soft and hard
tissue. It's also more likely to be sustained long term and consistently--
it's what maintains bone/muscle mass. When ... 阅读全帖 |
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D**********e
发帖数: 147 | 3 Leo Horoscope for November 2010
By Susan Miller
Have you been trying to settle a housing or property question? In November
you may get the most
wonderful options you have found so far, and best of all, you be able to set
plans in motion at long last. If
you need the money to make those plans materialize, the funds will be
available, even if you had problems
getting the money you need before this month. You will start to see the pace
build once you get to the
gorgeous new moon, November 6.
Over t... 阅读全帖 |
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D**********e
发帖数: 147 | 4 Leo Horoscope for November 2010
By Susan Miller
Have you been trying to settle a housing or property question? In November
you may get the most
wonderful options you have found so far, and best of all, you be able to set
plans in motion at long last. If
you need the money to make those plans materialize, the funds will be
available, even if you had problems
getting the money you need before this month. You will start to see the pace
build once you get to the
gorgeous new moon, November 6.
Over t... 阅读全帖 |
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j**n
发帖数: 13789 | 5 【 以下文字转载自 virgo 俱乐部 】
发信人: jnyn (青山上的小道), 信区: virgo
标 题: 瑞士著名心理学家 Carl G. Jung quotes on Astrology
发信站: BBS 未名空间站 (Tue Jul 19 14:58:49 2011, 美东)
Collection of Carl G. Jung quotes on Astrology
We are born at a given moment in a given place and like vintage years of
wine we have the qualities of the year and of the season in which we are
born. Astrology does not lay claim to anything else. - C.G.Jung
Astrology is one of the intuitive methods like the I Ching, geomantics, and
other divinatory proc... 阅读全帖 |
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f******e
发帖数: 1459 | 6 Hello readers,
I was browsing a bulletin board where energy healers converse and I replied
to a posting from a lady who
was having trouble taking in other people's negative energy when she was
doing healing work or just by
being around other people.
The following is my reply to her. I thought you might benefit from this
information as well.
=====================================================
Dear Cate,
I am an energy healer myself and I just ran across your posting and I wanted
to reply to you... 阅读全帖 |
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n******8
发帖数: 558 | 7 Echo
I look for traces of green in a farm of fossils.
Where a forest once was young.
Where I once heard breeze brush leaves and branches.
And their echoes still vibrate in my aged heart.
I look for traces of blue in a desert of plateau.
Where an ocean once was young.
Where I once heard waves batter cliffs and beaches.
And their echoes still vibrate in my desiccated heart.
I look for traces of white in a universe of dirt.
Where innocence once was young.
Where I once heard love sing a song o... 阅读全帖 |
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r***v
发帖数: 12658 | 8 IS/VR处理不了三脚架的震动
供参考
http://zhidao.baidu.com/question/116367919.html
印象中说明书里有说上脚架的时候需要关闭IS
有些炮镜的设计是上脚架的时候也不需要关
Even with the 600 L IS mounted on a tripod, IS helps stop vibrations as the
IS version on this lens is tripod-sensing. The Canon EF 600mm f/4.0 L IS USM
Lens knows that a tripod is being used when vibrations go below a certain
level. Keep IS turned on when mounting the Canon EF 600mm f/4.0 L IS USM
Lens on a tripod to take advantage of this secondary IS mode - reducing
mirror slap, shutt... 阅读全帖 |
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S******n
发帖数: 5022 | 9 The Tokyo district court ordered Sigma to pay 1.5 billion JPY (around 14.5
million dollars) compensation to Nikon as a result of the patent
infringement case for lenses with VR technology that was filed back in 2011.
The lawsuit was based on six Sigma lenses with image stabilization
technology. Initially Nikon was looking for a compensations of 12 billion
yen (around 116 million dollars).
Here is the summary of the judgment:
"Nikon obtained the patent related to VR technology in 2002. The conten... 阅读全帖 |
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z*i
发帖数: 58873 | 10 还有个poem呢。
In the final movement, Coltrane performs what he calls a "musical narration"
(Lewis Porter describes it as a "wordless 'recitation'") of a devotional
poem he included in the liner notes. That is, Coltrane "plays" the words of
the poem on saxophone, but does not actually speak them. Some scholars have
suggested that this performance is a homage to the sermons of African-
American preachers. The poem (and, in his own way, Coltrane's solo) ends
with the cry "Elation. Elegance. Exaltation.... 阅读全帖 |
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O******e
发帖数: 734 | 11 You are vibrating your vocal cords before the first "t" and
continuing past the second "t". That is the reason you are
making extra noise that becomes the I and E in "sI/tar/tE".
Try delaying vibration of your vocal cords until after your
tongue pushes off your front teeth to make the first "t",
and cut off your vocal cord vibrations before your tongue
and teeth make the second (final) "t" sound.
You probably have no difficulty with "tar". So practice
saying "tar", and focus on the instance wh |
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发帖数: 1 | 12 【 以下文字转载自 Military 讨论区 】
发信人: timefall (时光崩塌), 信区: Military
标 题: Re: 女人的性兴奋好像比男人的要强烈很多
发信站: BBS 未名空间站 (Fri Jul 7 16:22:46 2017, 美东)
当然有生理学心理学上正常和不正常之分，当然如果你觉得 gay 也是生理学心理学正
常那另说。。。法律意义上的正常不正常不是这个讨论范围。
而我个人不科学的民科的看法是，男性和女性生殖器结构和快感的相似度非常高，本来
就是类似结构分化出来的。。。或者说，欧几里德几何学上看起来差别很大，但现代拓
扑学拓扑转换以后就非常类似。
而男性跟女性在性刺激快感上最大的差别是，男性是 penetrate 方，所以刺激几乎全
是在外部。。。而女性是 receptive 方，所以刺激不仅仅在阴蒂，实际上阴蒂出发的
神经一直长到阴唇，而且现在认为阴道内壁G点啥的，可能就是阴蒂出发得神经往内部
生长。。。而正常育龄女性，这些神经末梢都会得到正常的刺激，由外入内，内外结合
，欲仙欲死。
而正常育龄男性，这性神经只可能从外部，也就是从阴茎，得到刺激。... 阅读全帖 |
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n*******s
发帖数: 17267 | 13 困了, 贴篇雪莱关于爱的陈述, 明天看.
什么是爱？要回答这个问题，让我们先问那些活着的人，什么是生活？问那些虔诚的教
徒，什么是上帝？
我不知其他人的内心结构，也不知你们——我正与之讲话的你们的内心；我看到
在有些外在属性上，别人同我相象；或于这种形似，当我诉诸某些应当共通的情感并向
他们吐露灵魂深处的心声时，我发现我的话语遭到了误解，仿佛它是一个遥远而野蛮的
国度的语言。人们给我体验的机会越多，我们之间的距离越远，理解与同情也就愈离我
而去。带着无法承受这种现实的情绪，在温柔的颤栗和虚弱中，我在海角天涯寻觅知音
，而得到的却只是憎恨与失望。
你垂询什么是爱吗？当我们在自身思想的幽谷中发现一片虚空，从而在天地万物
中呼唤、寻求与身内之物的通感对应之时，受到我们所感、所惧、所企望的事物的那种
情不自禁的、强有力的吸引，就是爱。倘使我们推理，我们总希望能够被人理解；倘若
我们遐想，我们总希望自己头脑中逍遥自在的孩童会在别人的头脑里获得新生；倘若我
们感受，那末，我们祈求他人的神经能和着我们的一起共振，他人的目光和我们的交融
，他人的眼睛和我们的一样炯炯有神；我们祈愿漠... 阅读全帖 |
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P******n
发帖数: 1220 | 14 【 以下文字转载自 Complain 讨论区,原文如下 】
发信人: Pentagon (老红军阿喷：建议板猪马克这篇先), 信区: Complain
标 题: Re: 代起诉pentagon
发信站: The unknown SPACE (Fri Jul 14 19:36:09 2000) WWW-POST
vibration的故事在今年2月时曾经在MITBBS
上掀起喧然大波。如今vibration终于去了
自己中意的学校。由于目前国内联不上MITBBS,
所以特地拖偶代为转发一篇文章，已表达
她本人对广大正义网友的感谢。
"君子做人坦荡荡”。可就有某些人，完全是一副
可怕的嘴脸。人家vibration凭借自己的聪颖才智，
先后得到Harvard,UCLA, Princton, UIUC, MIT
教授的垂青。可是某些人竟然说出以下的言论：
“ PS：我个人以为她不敢去Princeton和MIT
就是心里没底---我非常清楚这两校招她
的导师是谁，呵呵，其中一个还在上海
见过她。 ”
这简直是WC啊。
偶特别注意到，某些人就是不敢把自己的论点
摆 |
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b*s
发帖数: 82482 | 15 Name: iMac CD Update
Version: 1.0
Released: September 11, 1998
Requires: iMac with internal CD-ROM drive
Description: The iMac CD Firmware Update reduces the amount of
vibration caused by certain CDs in the internal CD-ROM drive. This
vibration is typically caused by unbalanced CDs when spinning at
higher speeds in the internal CD-ROM drive. This vibration may cause
the drive to have difficulty reading the CD.The iMac CD Firmware
Update application places new firmware on the |
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k***y
发帖数: 1085 | 16 我把text tone 该成有声响的，everything else vibrate, then when i receive
imessage, it's vibrate and a light swoosh sound. Doesn't matter you make the
side switch vibrate or not, i feel like it's sending imessage as a mail. |
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v*****s
发帖数: 20290 | 18 谢院士对Fluorescence和SERS需要用的label深恶痛绝，所以独辟蹊径，利用
stimulated emission在vibrational state上实现了label-free imaging，号称
stimulated Raman scattering microscopy。
前面娃娃鱼介绍的stimulated emission是对荧光的，也就是电子态跃迁，这个其实也
可以用到vibrational state上。当pump光和stokes光的频率之差正好等于vibrational
能级差的时候，可以实现Raman的stimulated emission，这时候stokes信号大大增强，
pump信号有所减弱。那么通过观测pump信号的减少就可以来定位分子。因为这个信号减
少量很小（10^-4），所以需要用AOM和lock-in amplifier调制去噪。 |
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i****g
发帖数: 3896 | 19 这种技术分辨率和敏感度是不是要差很多？观察培养的细胞细菌等可能可以，但是对动
物in vivo水平的观测很难实现吧？
谢院士对Fluorescence和SERS需要用的label深恶痛绝，所以独辟蹊径，利用
stimulated emission在vibrational state上实现了label-free imaging，号称
stimulated Raman scattering microscopy。
前面娃娃鱼介绍的stimulated emission是对荧光的，也就是电子态跃迁，这个其实也
可以用到vibrational state上。当pump光和stokes光的频率之差正好等于vibrational
能级差的时候，可以实现Raman的stimulated emission，这时候stokes信号大大增强，
pump信号有所减弱。那么通过观测pump信号的减少就可以来定位分子。因为这个信号减
少量很小（10^-4），所以需要用AOM和lock-in amplifier调制去噪。 |
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S*M
发帖数: 10832 | 20 不是大牛，我说专家是开玩笑的
两个vibration mode如果有共同的原子的话，就会有coupling
所以你去看normal mode vibration
很少有什么mode是纯粹的一个bond在vibrate（C-H, O-H stretch除外，因为高频）
当然说了半天，这个解释只是plausible
要验证的话，可以算一下C=O的local mode harmonic frequency（排除了coupling）
看看还是不是随环size 递减 |
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h**********3
发帖数: 427 | 21 帮忙查一下国内的一篇文章吧，谢谢了：
请发送到h**********[email protected]
Ab initio calculations of vibrational frequencies and structures of ion
pairs of perchlorate. Xuan, Xiao-peng; Xie, You-hai; Zhao, Yang.
School of Chemical and Environmental Sciences, Henan Normal University,
Xinxiang, Peop. Rep. China. Guangpuxue Yu Guangpu Fenxi (2010), 30(9),
2537-2540. Publisher: Beijing Daxue Chubanshe, CODEN: GYGFED ISSN: 1000
-0593. Journal written in Chinese. CAN 153:369826 AN 2010:1137884 ... 阅读全帖 |
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y***n
发帖数: 28 | 22 Physical Chemistry Postdoc Research Opportunity at Boston University
Xin Chen’s research group, newly-founded at Boston University, Department
of Chemistry in 2011, is seeking a postdoctoral researcher (or a visiting
scholar) with experience in ultrafast laser spectroscopy and nonlinear
optics. His/her major responsibility would be to set up and carry
experiments using a board-band vibrational sum-frequency spectrometer and
imaging system. Candidates experienced in nonlinear v... 阅读全帖 |
|
y***n
发帖数: 28 | 23 Physical Chemistry Postdoc Research Opportunity at Boston University
Xin Chen’s research group, newly-founded at Boston University, Department
of Chemistry in 2011, is seeking a postdoctoral researcher (or a visiting
scholar) with experience in ultrafast laser spectroscopy and nonlinear
optics. His/her major responsibility would be to set up and carry
experiments using a board-band vibrational sum-frequency spectrometer and
imaging system. Candidates experienced in nonlinear v... 阅读全帖 |
|
y*****5
发帖数: 883 | 24 说说本人的情况，国内机械制造本科毕业，来美国读PhD才半年，马上开学就要定导师
了。这个学校排名靠后80多，机械系规模不大而且和材料系是在一起的。系的老师大多
和packaging有关。老师主要分为材料方向和机械方向。
机械方向的老师：A教授是主任，科研搞的少了。方向是Computational mechanics,
vibration modeling and testing。
B教授主要作的是Finite Element Analysis，Physical reliability
of small-scale systems such as MEMS and sensors , Advanced packaging
solution in 3-D packaging and Pb-free solders , Optomechanics in micro scale
deformation analysis , Reliability of structural failure.手下学生10几个。
C assistant ... 阅读全帖 |
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N**O
发帖数: 1106 | 25 我靠，我咋觉得这说得就是我们group捏，
ps，我在b这一组
说说本人的情况，国内机械制造本科毕业，来美国读PhD才半年，马上开学就要定导师
了。这个学校排名靠后80多，机械系规模不大而且和材料系是在一起的。系的老师大多
和packaging有关。老师主要分为材料方向和机械方向。
机械方向的老师：A教授是主任，科研搞的少了。方向是Computational mechanics,
vibration modeling and testing。
B教授主要作的是Finite Element Analysis，Physical reliability
of small-scale systems such as MEMS and sensors , Advanced packaging
solution in 3-D packaging and Pb-free solders , Optomechanics in micro scale
deformation analysis , Reliability of structural failure.手下学生... 阅读全帖 |
|
y***n
发帖数: 28 | 26 Physical Chemistry Postdoc Research Opportunity at Boston University
Xin Chen’s research group, newly-founded at Boston University, Department
of Chemistry in 2011, is seeking a postdoctoral researcher (or a visiting
scholar) with experience in ultrafast laser spectroscopy and nonlinear
optics. His/her major responsibility would be to set up and carry
experiments using a board-band vibrational sum-frequency spectrometer and
imaging system. Candidates experienced in nonlinear v... 阅读全帖 |
|
f**d
发帖数: 768 | 27 这是一本计算神经科学的优秀著作，全文拷贝这里（图和公式缺），有兴趣的同学可以
阅读
如需要，我可以分享PDF文件（－－仅供个人学习，无商业用途）
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
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t*****8
发帖数: 1274 | 28 今天晚上刚刚seafoam了前一段时间给老婆买的miata自动档。因为烟太大，我又住apt,
所以只好天黑
偷偷干。。。可天黑什么也看不清，我也没有手电筒，真麻烦。找了很长时间vacuum
line都找不到，
最后用的brake booster hose。三分之一到进油箱，三分之一到进机油里，三分之一吸
进intake
manifold. 等了1小时，打着车，踩油门，好多白烟啊，两个邻居开车经过，全部停车
问问需不需要帮
助。。。然后开上i-40，开到105mile时速，保持一会，然后回家。
感觉低速阶段提速比以前要快了，发动机声音好听了。
但是还有几个问题，请大家帮忙解答：
从brake booster往里吸seafoam一半的时候，check engine灯亮了，google了一下，说
是吸的
太快了。。。但是我的车以前静止时，把档位放到d或者r时，会有vibration, 感觉是
嘟一下，嘟一
下的，开着空调时更甚。seafoam完了这种vibration还是存在，我准备明天把火花塞换
了，机油也换
了，会好转么？这种间歇性vibration应该是什么原因，我还要换换啥呢？
我买 |
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c**********9
发帖数: 135 | 29
The balancer shaft had to be omitted due to package and weight reasons. The
more pronounced vibration of the components and the sustained effect on
interior acoustics were already counteracted during the early stages of
design, however. The interior noise level of the 2nd engine order could be
reduced to a low level in comparison to the competition via consistent
vehicle-side sound insulation measures and electrically actuated exhaust
flaps. The driving dynamics requirement could be taken into ... 阅读全帖 |
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w*******y
发帖数: 60932 | 30 Sears has the below item on sale. In addition, the following savings may
apply:
Free Shipping on Tools over $99
Save on Your Tool Orders. $5 off $25, $10 off $60, $15 off $100 or more.
Items Sold by Sears. Offer ends 22-Feb-2011.
Discount applied in cart. Offer excludes Great Price, Clearance and items
with an Online Only Price, Hot price items. This offer can not be combined
with any other offers. Excludes items 00959631000P, 00959629000P. Additional
items may be excluded Offer good through 22-... 阅读全帖 |
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w*******y
发帖数: 60932 | 31 $179.99 + $50.00 credit for Amazon purchases w/in 30 days of shipment,
effectively making this $129.99!!!
Braun Series 7- 790cc Pulsonic Shaver System Silver
List Price: $269.99
Price: $179.99
You Save: $90.00 (33%)
Product FeaturesInnovative pulsonic technology. 10,000 micro vibrations help
capture more hair
3 personalization modes for a more individual shave.
Fully flexible shaving system for maximum facial adaptability.
Activelift captures flat-lying hair in problem areas for a smooth and
... 阅读全帖 |
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b*******n
发帖数: 507 | 32 太老了，日本大妈真正喜爱的是vibrator.
不过把影帝的头像做在vibrator上肯定热销。 |
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w*********g
发帖数: 30882 | 33 高歌，现任北京航空航天大学能源动力学院动力工程及工程热物理学科一级责任教授，
航空发动机气动热力国防重点实验室副主任，长期从事动力工程、工程热物理及流体力
学领域的教学与科研工作，并在基础科研和多学科的应用技术领域取得了一系列国际领
先水平的创新性科研成果。
他在1984年发明的"沙丘驻涡火焰稳定器"，获国家发明一等奖，钱学森同志称之为"一
项长中国人志气的重要发明"。该成果广泛应用于我国多种军用航空发动机中，取得了
数以亿元计的经济效益，至今仍保有先进水平。本刊记者于今年10月采访了高歌教授，
了解到了他近期从事的一些前沿科研工作的最新进展，尤其是他对龙卷风的研究及其工
程应用价值，让人耳目一新。
高歌教授在采访中提到，传统的航空发动机技术虽然还在不停地改进提高之中，但
受到原理和材料工艺上的限制，已经逐渐逼近了性能发展的极限。目前虽然涌现出一些
新型航空发动机技术，但仍然没有走出依靠压力膨胀过程来实现热功转换的思路。他强
调，人们应该另辟蹊径，寻找其他可用的工作原理。为此，他研究了自然界龙卷风的形
成与强化机制，发明了一项称为"余热增推"的技术，直接利用龙卷旋涡实现热功转换并
提取... 阅读全帖 |
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w*********r
发帖数: 42116 | 35 怎么做RANDOM VIBRATION？
振动两个参数，一个是频率，一个是振幅，你这个加速度／时间怎么实现？
打听个事情，你见过真的VIBRATION TABLE和PROFILE吗？ |
|
b*******h
发帖数: 2585 | 36 RANDOM VIBRATION要按照PDS 做.
振动闭环控制一般都是加速度计信号反馈. 控制驱动电流.
加速度／时间是直接实现的.
我不清楚你说的VIBRATION TABLE和PROFILE具体是什么. |
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w*********r
发帖数: 42116 | 37 倒底是SHOCK TABLE还是VIBRATION TABLE？
如果是VIBRATION TABLE，那怕只能做SINE SWEEP，也是加速度 VS 频率。 |
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b*******h
发帖数: 2585 | 38 I am not sure about your terminology.
A electrodynamic shaker could be used for sine dwell, sine sweep,
random vibration and classic shock.
A mechanical shaker could only be used for sine test ( fixed frequency or
sine sweep) . Maybe that is your VIBRATION TABLE |
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w********h
发帖数: 12367 | 39 除了中文wiki上说Sauer是Merkel的博士导师，
你能提供英文来源么？
Merkel和Sauer就合作过一篇web of science能查到的文章，
你说话能有点证据么？
VIBRATIONAL PROPERTIES OF SURFACE HYDROXYLS - NONEMPIRICAL MODEL-
CALCULATIONS INCLUDING ANHARMONICITIES
By:MIX, H (MIX, H); SAUER, J (SAUER, J); SCHRODER, KP (SCHRODER, KP); MERKEL
, A (MERKEL, A)
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS
Volume: 53 Issue: 10 Pages: 2191-2202 Published: OCT 1988
按照Merkel A来检索，共有9篇，
即便她后来没成为一个成功的物理化学家，
但得到的博士学位，是货真价实的！
1
THE LOWEST BOUND-STATES OF TRIPLET (BH2)+
B... 阅读全帖 |
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t******l
发帖数: 10908 | 40 别听那帮民科的。。。基本原则是，年轻有精力无娃的夫妻，一般男上女下，偶尔
doggy style。。。昌平挖沙那种实在闲得无聊的，天天 doggy style 也没人管。。。
但有娃的很忙还要写算法的，spoon style 可以多用。。。但 spoon style 的最大缺
点是女性缺少 clitoral stimulation，所以考虑经常换换口味时，给女性一个合适的
vibrator 来 clitoral stimulation。。。最高端配置是专门给夫妻设计的 couple
vibrator。但那个的 learning curve 非常 steep，Amazon 上面一堆差评。用好了应
该不错，毕竟 sale rank 很不错。。。以上是科学，提升生活品质，增加工作效率，
还对抗抑郁，我真心的说。
: 听起来好民科啊。
: 难道高潮了，精子还能抄个近路么。
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s***h
发帖数: 487 | 41 这个问题很尖锐，有 insertable vibrator 玩具针对阴道和 G 点，有 non-
insertable vibrator 针对阴蒂，有钻石在外不锈钢在内的小巧后庭花塞针对后庭花，
但没有针对法式接吻的玩具。
: 扯蛋，为什么没有功能模拟的玩具?
: ：首先，你试过深度舌吻没有？
: ：如果没有，你没有发言权。
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发帖数: 1 | 42 那位要么处男，要么跟你一样是女的
：这个问题很尖锐，有 insertable vibrator 玩具针对阴道和 G 点，有 non-
：insertable vibrator 针对阴蒂，有钻石在外不锈钢在内的小巧后庭花塞针对后庭花
，但没有针对法式接吻的玩具。 |
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s***h
发帖数: 487 | 43 强东不是爽歪歪？男生都喜欢后入的 。。。
当然从前女生不爱后入，主要一来是女生阴蒂得不到刺激，二来是后入时JB的角度，刚
进入时有时让女生会有点疼。（这两点可以 quora 大数据证实）。
但现代女生一来有 couple friendly vibrating egg or couple vibrator，背飞时也
能给女生阴蒂刺激，实际上比前入更容易刺激阴蒂。二来有 intimacy lubricant
glycerin-free with aloe vera，避免润滑和JB角度造成的背飞刚进入时的稍稍疼痛。
这样实际上现代女生也可能更喜欢背飞，因为背飞时各种操作空间更大，可以更深更密
合，也同时轻轻挑逗乳头或者按摩腰部臀部也更为容易。 |
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N*V
发帖数: 350 | 44 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 人类第一台真空能发动机即将在中国攻关成功
发信站: BBS 未名空间站 (Sat May 14 22:28:25 2011, 美东)
高歌，现任北京航空航天大学能源动力学院动力工程及工程热物理学科一级责任教授，
航空发动机气动热力国防重点实验室副主任，长期从事动力工程、工程热物理及流体力
学领域的教学与科研工作，并在基础科研和多学科的应用技术领域取得了一系列国际领
先水平的创新性科研成果。
他在1984年发明的"沙丘驻涡火焰稳定器"，获国家发明一等奖，钱学森同志称之为"一
项长中国人志气的重要发明"。该成果广泛应用于我国多种军用航空发动机中，取得了
数以亿元计的经济效益，至今仍保有先进水平。本刊记者于今年10月采访了高歌教授，
了解到了他近期从事的一些前沿科研工作的最新进展，尤其是他对龙卷风的研究及其工
程应用价值，让人耳目一新。
高歌教授在采访中提到，传统的航空发动机技术虽然还在不停地改进提高之中，但
受到原理和材料工艺上的限制，已经逐渐逼近了性能发... 阅读全帖 |
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f*****y
发帖数: 142 | 45 经常看到什么howl, growl, whine等词描述车路上的噪音，
下面是详细的解释，基本上每个词都有不同的意思。
欧的小破车就是howl，具体问题可以归结到differential里面
的那个pinion gear loose。//sigh，心有余而力不足啊。
尤其是没有时间再拆一次tranny了。
HOWL
Low to medium frequency
Changes pitch
Rhythmic oscillation
All speed ranges
Torque-sensitive
May have vibration
A howl is a low- to medium-frequency sound which may change in pitch, or
have a rhythmic oscillation. A howl can usually be heard through all speed
ranges and is torque-sensitive, and may be accompanied by a vibration. A
howl is |
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