a***e
发帖数: 27968 | 1 真不知道这东西效率怎么样，
要产生30MJ得动能，需要多大能量注入，150MJ?
按2000m/s平均速度，20米的炮管也就是1/100秒的事
1.5GW?
而且功率是FV,匀加速后面的功率越来越高，真够变的
th
heat
exerte
projectile.
pr
schoo
the
repel
mag |
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w********r
发帖数: 14958 | 2 Suppressors can increase the precision of a rifle, as they strip away hot
gases from around the projectile in a uniform fashion.
"as" 这里表示“因为”， 起解释原因的作用。 这个就是你所challenge的“一点”。
另外，以上任何文字中，没有提到是因为减小了后坐力才提高的精度吧。 提高精度以及减小后坐力是suppressor的2个影响。 没人说这两个是关联的。 |
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p*********e
发帖数: 32207 | 3 那么具体指导方式呢?激光架束么?还是无线电指令?
另外你的意思是说projectile上会有可控弹翼或者燃气舵之类的控制舵面?
我知道曲射的榴弹炮有用激光制导的,但这种直射弹药还没听说过呢 |
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c***r
发帖数: 4631 | 4 一秒种一发总能保证。
实际上，二战的时候就常有用主炮防空的事情。例如
http://battleshipyamato.info/weapons.html
the 18-inch gun was provided with an anti- aircraft shell of its own, called
"San Shiki" (the Beehive) Model 13. This round weighed 2,998 pounds and was
filled with 900 incendiary tubes (of rubber thermite) and 600 steel stays.
A time fuze was supplied, set before firing, that went off at a
predetermined altitude and when the fuze functioned, the explosive and metal
contents burst in a cone extending 20 degrees forward,... 阅读全帖 |
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d**********0
发帖数: 13081 | 5 http://www.hmslondon.org.uk/yangtze%2019.htm
The report of Commander John Hodges.
Acting CAPTAIN for CAPTAIN.
At 1036 fire was opened from the North Bank in the vicinity of LIU-WEI-
CHIANG (lat. 32°1' Long. 119° 59' E.). The ship was hit immediately by
projectiles which appeared to be of 75mm and 105mm calibre.
The opposition consisted of 4" gun Batteries well dug in, but plainly
visible, on the bank and of anti-tank weapons of 40mm calibre which fired
high velocity armour piercing shot which we... 阅读全帖 |
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发帖数: 1 | 6 服役记录
• 美国
位于北卡罗来纳州-布拉格据点的陆军第18野战空降炮兵旅，是最早测试M777的部队(其
他测试部队还包括321野战炮兵团第一及第三营)。第11旅2营B连二排五组的第二枪炮组
则是第一支于实战中首度射击M777A2的部队(巴格达时间2008年1月2日08点23分)，11旅
2营后来于2007年12月被配属到位于夏威夷Schofield兵营第25步兵师第二旅战斗群。
2007年6月，M777-A2正式编制到美国陆军321野战炮兵团三营，曾于2007年12月到阿富
汗支援持久自由行动，并在2008年1月成为任务主力。2008年4月，M777被配发到位于阿
拉斯加Fairbanks温赖特据点(Fort Wainwright)的野战炮兵第8旅2营进行测试。2008年
7月20日，位于密西西比Shelby营28步兵师108野战炮兵旅1营的宾夕法尼亚国民警卫队
，成为了第一支国民警卫队的炮兵单位-108旅1营C连，并在战场上射击M777。
• 澳大利亚
2008年，澳大利亚国防军向美国提出国外军购需求，以2亿4千8百万美元向美国购买57
门M777A2。随后... 阅读全帖 |
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发帖数: 1 | 8 我在前文《愚民主政下的指鹿为马》里指出中山科学院的海剑羚系统是忽悠大众的虚拟
武器，不过这并不代表海剑羚这类的反飞弹飞弹系统有物理或工程上不可能超越的困难
，毕竟美军的RIM-116和共军的HHQ-10都已大批服役。中山院的问题在于管理和经费上
的欠缺，使其研发能力远远落后于国际先进的水淮。但是当前世界军工业的确有些因物
理或工程上困难而不可能在合理时间内达到有意义的性能指标的武器发展计划，换句话
说，即使是最先进的美、中、俄三国都不可能成功开发这些新武器技术，它们是真正忽
悠全世界民众的虚拟武器。
在这些虚拟武器中，最常被军迷提起的是电磁炮。前文《看不见的军备竞赛：战术雷射
》已经批判过它的不实用性，不过我仍然在中美的军事论坛上看到很多兴高采烈的文章
，预言它将取代下一代海军舰只的主炮。美国海军（雇用BAE Systems）以及厂商自费
（General Atomic，通用原子）继续高调开发电磁炮技术，共军的“北方某单位”（参
见http://www.dingsheng.com/portal.php?mod=view&aid=5591）也在默默地研发之中。那么是否中美的科研机构有我未... 阅读全帖 |
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m********i
发帖数: 301 | 9 designed to destroy
很多东西都可以适用
比如棒球棒,designed
to hit hard on
anything on its
projectile motion.
比如汽车,designed
to hit hard ...
但是棒球棒一般人用
它来打棒球.而汽车
一般人用他来hit
空气.疯子和不疯的坏蛋
就不这样.所以不应该用
gun,刀, designed to
destroy来支持禁.
工具和机器如果都是
用来designed to
destroy or neutralize
真正的区别又有多大哦?
[发表自未名空间手机版 - m.mitbbs.com] |
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l****z
发帖数: 29846 | 10 Israel's 'Iron Dome' changes the face of battle
July 10, 2014 - 3:35 PM
By ARON HELLER, Associated Press
JERUSALEM (AP) — Israel's "Iron Dome" defense system has emerged as a game-
changer in the current round of violence with Hamas militants in the Gaza
Strip, shooting down dozens of incoming rockets and being credited with
preventing numerous civilian casualties.
By shooting down more than 90 percent of its targets, the system is ensuring
Israel's decisive technological edge that has helped it... 阅读全帖 |
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l****z
发帖数: 29846 | 11 by Jammie via Jammie Wearing Fools
What happens when a belligerent nurse refuses to obey the law and throws a
week-long temper tantrum aided and abetted by the Democratic Party and the
media? Most of America recoils in horror and disgust.
You own this one, Democrats.
Kaci Hickox, the nurse who fought to get out of a quarantine instituted
by New Jersey Gov. Chris Christie (R), won the first round of her PR battle.
Winning the second round will be very difficult.
Since being transferre... 阅读全帖 |
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b******n
发帖数: 4559 | 12 Say Something
Song by Alex Preston, A Great Big World
Say something, I'm giving up on you
I'll be the one, if you want me to
Anywhere, I would've followed you
Say something, I'm giving up on you
And I am feeling so small
It was over my head
I know nothing at all
And I will stumble and fall
I'm still learning to love
Just starting to crawl
Say something, I'm giving up on you
I'm sorry that I couldn't get to you
Anywhere, I would've followed you
Say something, I'm giving up on you
And I will swall... 阅读全帖 |
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d*2
发帖数: 2053 | 13 https://www.yahoo.com/news/skorea-rival-n-korea-launches-221238531.html
SKorea: Rival N.Korea launches ballistic missile
SEOUL, South Korea (AP) — North Korea on Sunday test-launched a ballistic
missile that flew about 700 kilometers (435 miles), South Korea's military
said, a possible response to the election four days ago of a new South
Korean president and as U.S., Japanese and European militaries gather for
war games in the Pacific.
South Korea's Joint Chiefs of Staff confirmed the early mor... 阅读全帖 |
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a*********a
发帖数: 3656 | 15 一直没禁，因为是合法的。
半自动的定义是：one action of trigger launches one projectile. 半自动bump
stock之后，这一点没有改变。 |
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b********n
发帖数: 38600 | 16 【 以下文字转载自 Military 讨论区 】
发信人: beijingren (to thine own self be true), 信区: Military
标 题: 美国人眼中的中国人印象大全，哈哈
发信站: BBS 未名空间站 (Tue Jun 5 21:41:50 2018, 美东)
You look like you are 18.
You like to eat chicken feet.
You suck on fish heads and fish fins.
You have a Chinese knick-knack hanging on your rear view mirror.
You sing Karaoke.
Your house is covered with tile.
Your kitchen is covered by a sticky film of grease.
Your stove is covered with aluminum foil.
You leave the plastic covers on your remote ... 阅读全帖 |
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d****2
发帖数: 6250 | 17 air bag就是小炸弹，胳膊放前面成了projectile了。 |
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d********e
发帖数: 2221 | 18 don't hang anything on the mirror. It may become a projectile in an
accident. |
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d****e
发帖数: 2856 | 19 Airbag deployment may turn those objects into projectiles against you or
your passenger... |
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A*****e
发帖数: 64 | 20 我在大学教书3年，前面几个学期都在教junior senior的课程，感觉学生的水平还不算
太差。本学期系里给我教Statics，其实跟国内高中物理水平差不多，只不过全用矢量
。在过去的一个月里真正地感受到美国的基础教育的成果。今天做一道非常简单的题目
用到接二元一次方程组，我没有给出所有步骤。课后有学生来问，怎么解。我就给他随
便写了两个方程
3x + 4 y = 7
x - y = 0
不能再简单了吧。结果此学生做了一整页也没做出来。我一看，他居然不知道要消元。
我解释的时候，他说，他不知道要消元是因为我没有在两个式子前画大括号。
洒家立刻崩溃。额滴神呀，这样的学生怎样考入工程院的？
还有学生（不止一个）不知道projection（投影）是什么意思，以为是projectile。还
有令人吃惊的是好几个人分不清sin, cos. |
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s*******n
发帖数: 1 | 21 Job Title: Project Manager with Localization Engineering Background
Location: Milford, MA, USA.
Type: Full-time, at-will employment
Functions: Project management
Industries: Translation and Localization,
Pay Description: Base salary + welfare
Job Description: Coordinate with different internal and external
stakeholders for localization; workload analysis with CAT tools for
preparation of project kit and instructions; create and execute projects
within automated project and business management sy... 阅读全帖 |
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c***2
发帖数: 3 | 22 tell your husband(or pet) to aim more accurately! sometimes the projectile
of urine leave on floor adjacent to bowl caused the odor. also asked him to
life the bowl cover before doing his thing! |
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m***y
发帖数: 14763 | 23 Crazy.
If you really want to save a wet saw, use a circ saw. Miter is kinda too
expensive to ruin on brick.
Place boards on a storage container, and a helper pointing a garden hose to
the cutting edge (The heat builds up quickly). Just a trickle, you
definitely don't want any splash.
There are something special on wet saws which you can't get from other saw.
1. It grinds, instead of rips.
2. It rotates much slower than others, for better grinding, and also slowing
down the heat build-up.
3. It r... 阅读全帖 |
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c********e
发帖数: 496 | 24 this is not muscle spasm, how come muscle spasm can cause tinnitus.
suppose you should have some other symptoms, right, like dizziness,
any fever?
could you describe your vomit, is it projectile vomiting? |
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x*l
发帖数: 178 | 25 还没有生，看了一些母乳喂养的书，做了些笔记摘要，和大家分享。
Signs of a Good Latch
• Baby’s lips curled outward and firmly applied to your breast.
• If you pull slightly on your baby’s lower lip while he is
suckling, you should see that his tongue is curled up on each side and
cupped around your breast, forming a trough to the back of his mouth. A
large area of his tongue should be in direct contact with the underside of
your breast, massaging it in a wavelike motion that brings the milk into his
mouth with... 阅读全帖 |
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n***a
发帖数: 1742 | 26 床垫可以架起来一个45度斜坡，这样宝宝就不用总抱着了。专门有卖那个垫子的。
我家的也是reflux一段时间，4，5个月就好了。坚持！如果不喜欢那些药，换个医生问
问总没有坏处。
有一次我见过幼儿园的宝宝4个多月projectile喷射奶的，恐龙喷火一样，我看完了都
吓傻了。。。想想我儿子吐几口奶就没啥了。 |
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x******t
发帖数: 3911 | 27 来自主题: NextGeneration版 - 求祝福 bless. my doctor said that if it is not projectile style, then it is ok.
did you check with your doctor? |
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m*a
发帖数: 4927 | 28 来自主题: NextGeneration版 - 宝宝常吐奶 about 4, if ur baby always spits up in a projectile motion, u'd better talk
to the Ped. it could be reflux, GERD, or food allergy |
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c**r
发帖数: 10001 | 29 来自主题: NextGeneration版 - 娃吐得好可怕 咕嘟咕嘟往外冒那种肯定算vomit了，算不算projectile不知道，我们宝宝小时候
有次是真的鼻子里喷出来喷好远的，那个我知道绝对是喷射. |
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J*******a
发帖数: 96 | 30 刚刚给儿医打电话，据说是气太多，让每次吃完再拍10分钟，然后竖着睡30分钟。看来
我们是拍得不够给力。。。
还说reflux会有spit up和projectile vomit. |
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g******t
发帖数: 230 | 31 两篇对照着看，一个让人笑，一个让人笑着叹气。
50 reasons to have a baby:
1. Eating for two.
2. Maternity jeans.
3. Baby kicks.
4. The fun of being able to say "I'm not expecting" when asked how far
along you are.
5. Justified naps.
6. Not worrying about birth control.
7. Hearing the heartbeat for the first time.
8. Parking in "Expectant Mother" parking spaces.
9. Boobs!
10. Not having to suck in your gut.
11. The fact that nobody picks a fight with the pregnant woman.
12. Having an excu... 阅读全帖 |
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c******y
发帖数: 97 | 32 netocate is amino based formula, the same as enfamil neutramigen AA, and
similac Alimentum. Protein is broken down to smaller molecular to get baby
digest easily, it is also called pre-digested formula.
However, be caution of the manufacture process, since my baby still have
blood stool with Neutramigen AA, even it is claimed amino acid based formula
. Therefore we switch to neocate and fed my baby since then.It is about two
months now, so far no blood stool, and no projectile vomit. |
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w***e
发帖数: 269 | 33 projectile vomit in a baby could mean pyloric stenosis, just like this one. |
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t***e
发帖数: 23 | 34 很多人又问过了， 我刚找到：
They are the following:
1. CONVENTIONAL MUNITIONS: Technologies associated with
warhead and other large caliber projectiles, reactive armor and
warhead defeat systems, fusing, and arming systems.
2. NUCLEAR TECHNOLOGY: This section covers technologies
associated with the production and use of nuclear material for both
peaceful and military applications. Included are technologies for
enrichment of fissile material, for reprocessing irradiated nuclear
fuel to recover |
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c*********s
发帖数: 85 | 35 There's an important detail that ogb started to talk about. There is more
than one kind of car seat. For a new born baby who doesn't have neck
strength, the rear facing seats have a thing that goes around the baby's
head to keep it from rolling around too much. Properly strapped into one of
these infant seats, I dare say you can throw it a distance without injuring
the baby inside. On the other hand, hand carrying a baby in a car means in
case of an accident, the baby can (probably will) become ... 阅读全帖 |
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n***p
发帖数: 7668 | 36 孩子体重小于40磅的Latch标准是汽车制造商决定的，不是Carseat制造商。
Booster和ConvertibleCarseat的区别是，那个Latch其实只是起了个固定
Booster的作用，就是当没有孩子坐在Booster 上时，Booster不会乱飞。
很多Booster根本就不是固定的，没有孩子坐上面时，它就乱晃。
孩子坐在Booster上时，需要系安全带，所以万一发生车祸，孩子的重量其
实是安全带承担的。或者说是安全带固定住了孩子和Booster carseat。
Convertible完全不同，孩子在Convertible上时，是由Carseat上的5-point
harness承担重量，而万一发生车祸时，孩子和Carseat 的重量全部由latch
承担，要是孩子超过40磅，Latch受力太多，承受不住，孩子和Convertible
carseat就会一起飞出去。
另外，有些Convertible／Booster二合一的Carseat，要是你仔细读说明书，
上面也会写明当孩子体重超过40磅时，如果是Convertible模式，也需要用
安全带固定carseat，而不... 阅读全帖 |
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c*********o
发帖数: 471 | 37 这姑娘用一篇简单文章 拿到了五所常青藤offer(组图)
作者： 北美留学生日报 发表日期: 2016-04-05 15:43:45
就在上周四，美国高中生Brittany Stinson凭借一纸神文书，被五所藤校（耶鲁，哥大
，宾大，达特茅斯，康奈尔）以及斯坦福同时录取。要知道今年斯坦福的录取率仅有4.
69%，比其他任何藤校录取率都低，可想而知小姑娘是如何凭借实力成为黑马的。
“ 其实我到现在都还不敢相信申请结果这么出彩。” Brittany 告诉记者。
众所周知，美国八大藤校对学生的素质要求向来严苛，虽然申请者们早就做好了心里准
备，但竞争仍一年比一年激烈，门槛不断抬高。
Brittany Stinson申请的所有院校中，录取率从 4.69%.到13.96% 不等，她也大方的和
读者分享了申校过程中准备的文书，下为正文：
题目
有些学生觉得对于一份申请材料来说，自身背景，身份，兴趣爱好或者才艺等因素至关
重要，如果你也这么认为， 请和我们讲讲你的故事。
文章
如果你在某个周六早上看到Costco里有个精力充沛的两岁小女孩，那可能就是我了。
我妈妈不太愿意带我去Cost... 阅读全帖 |
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s***d
发帖数: 15421 | 38 【 以下文字转载自 Military 讨论区 】
发信人: tomnjerry (tom jerry), 信区: Military
标 题: 达拉斯护士真可怜：两天没protective gear
发信站: BBS 未名空间站 (Thu Oct 16 01:23:44 2014, 美东)
Report: Texas Ebola Nurses Had No Protective Gear For Two Days
Hospital workers were intensively exposed to the first U.S. Ebola patient
without wearing protective gear for two days, according to The Dallas
Morning News.
Between Sept. 28 and Sept. 30, medical professionals treating Thomas Duncan
wore only gowns and scrubs in the interim. Duncan was suf... 阅读全帖 |
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h***e
发帖数: 20195 | 40 【 以下文字转载自 NewYork 讨论区 】
发信人: fennelyam (罗拉莱-迷蒙地醒不如热烈地梦), 信区: NewYork
标 题: 美国人辨别中国人的88种方法 (美国媒体上刊登的一期文章）【中英】
发信站: BBS 未名空间站 (Sun Feb 13 16:17:09 2011, 美东)
美国人辨别中国人的88种方法(中英对照)
88Ways to Know If You"re Chinese
1.You look like you are 18.你看起来好像才18岁（东方人普遍看起来比较年轻）
2.You like to eat chicken feet.你喜欢吃鸡脚
3.You suck on fish heads and fish fins.你吃鱼时会吸鱼头和鱼鳍(他们都是直接切
掉的)
4.You have a Chinese knick-knack hanging on your rear view mirror.你的车子后
视镜上会吊中国摆设
5.You sing karaoke.你唱K(唐人街才有的玩意儿)
6.Your house is covere... 阅读全帖 |
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Z*********1
发帖数: 627 | 41 眼镜叠眼镜, 如果你的安全眼镜足够大并通过ANSI Z87.1-2010标准,可以.
home depot 卖的可戴在眼镜上的护目镜说满足ANSI Z87.1-2003要求 (2003, not
2010),但没有确证过．
http://www.homedepot.com/buy/tools-hardware-safety-security-eye-
protection/3m-tekk-protection-chemical-splash-safety-goggles-
136813.html
ANSI Z87.1 2010标准规定安全眼镜必须通过下面两项测试:
1. High Mass impact test: The high mass pointed projectile is pointed
and
weighs 500 grams and is dropped from a height
of 50 inches. ０．５ 公斤的铁球从５０吋的高度砸下来镜片和镜架不破．
2. High Velocity Impact forces to be tested. The h... 阅读全帖 |
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a***s
发帖数: 1084 | 42 http://www.kplr11.com/news/la-mysterymissle9-m,0,7605513.story?track=rss
Mystery 'missile' launch near L.A. no threat to national security,
government officials say
Military and aviation officials say they don't know who may have
launched a mysterious object spotted in the sky late Monday off the
Southern California coast, but said that whatever the projectile was, it
did not pose a threat to national security.
A KCBS news helicopter spotted what appeared to be a missile traveling
through the sk... 阅读全帖 |
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b****n
发帖数: 4166 | 43 http://newyork.cbslocal.com/2010/10/19/nj-snow-and-ice-removal-law-in-effect-wednesday/
NJ Snow And Ice Removal Law In Effect Wednesday
TRENTON, NJ (AP) – Motorists might want to be sure they have scrapers and
brushes in their vehicles because police in New Jersey can ticket and fine
those who don’t clear snow and ice.
An amended law that goes into effect Wednesday requires motorists to make a
reasonable effort to remove all ice and snow from their vehicles before
traveling on the roads.
Motoris... 阅读全帖 |
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b******n
发帖数: 4559 | 44 【 以下文字转载自 USANews 讨论区 】
发信人: bingchen (冰宸), 信区: USANews
标 题: say something (i'm giving up on you) - 悼念华裔NYPD刘警官昨日被枪杀
发信站: BBS 未名空间站 (Sun Dec 21 16:51:06 2014, 美东)
Say Something
Song by Alex Preston, A Great Big World
Say something, I'm giving up on you
I'll be the one, if you want me to
Anywhere, I would've followed you
Say something, I'm giving up on you
And I am feeling so small
It was over my head
I know nothing at all
And I will stumble and fall
I'm still learning to love
Just starting to c... 阅读全帖 |
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f*******m
发帖数: 5008 | 45 美国人辨别中国人的88种方法(中英对照)
88Ways to Know If You"re Chinese
1.You look like you are 18.你看起来好像才18岁（东方人普遍看起来比较年轻）
2.You like to eat chicken feet.你喜欢吃鸡脚
3.You suck on fish heads and fish fins.你吃鱼时会吸鱼头和鱼鳍(他们都是直接切
掉的)
4.You have a Chinese knick-knack hanging on your rear view mirror.你的车子后
视镜上会吊中国摆设
5.You sing karaoke.你唱K(唐人街才有的玩意儿)
6.Your house is covered with tile.你的房子铺的是瓷砖(老外都是木板)
7.Your kitchen is covered by a sticky film of grease.你的厨房覆盖着一层厚厚
的油脂(爱炒东西的缘故)
8.Your stove is covered with aluminum foil.你的炉子... 阅读全帖 |
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r*******t
发帖数: 8550 | 46 Section 1050.7
Disorderly conduct.
No person on or in any facility or conveyance shall:
litter, dump garbage, liquids or other matter, create a nuisance, hazard or
unsanitary condition (including, but not limited to, spitting, or urinating,
except in facilities provided). Trash and other waste materials contained
in waste receptacles shall not be removed, except by persons duly authorized
by the Authority;
smoke or carry an open flame or lighted match, cigar, cigarette, pipe or
torch;
sleep or d... 阅读全帖 |
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b****r
发帖数: 1395 | 47 个人认为这个类比并不合适，在关于枪支立法的辩论中，用汽车做类比没有
说服力。
枪支的设计目的就是以发射projectile致伤甚至致死为目的，而汽车的设
计则是以代步工具为目的。就因为汽车可以作为杀人工具来作为类比并不合
适。 |
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T********e
发帖数: 8631 | 48 Yes. But looks like Ebola is only contagious when you got them projectiling
out of wazoo. Not a very smart virus like they said. |
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B******1
发帖数: 9094 | 49 Shots fired at bus, school in Rancho Bernardo
By Debbi Baker, UNION-TRIBUNE STAFF WRITER
Thursday, January 28, 2010 at 1:59 p.m.
Someone fired shots at a city bus and a school within minutes of each other
in Rancho Bernardo Wednesday night, police said.
The first incident was reported at 9:20 p.m. on West Bernardo Drive, said
San Diego police Lt. David Rohowits.
Some type of small projectile hit the left window of the driver’s bus and
flying glass injured the driver’s eye, Rohowits said.
The 57- |
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v*******8
发帖数: 20 | 50 I know you're joking - she threw the cup/coke/ice cubes inside the window of
the other car ...
obviously, there is a specific law about throwing projectile against a
moving car ... |
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