B******1
发帖数: 9094 | 1 Still another way is to lift the car off the ground, make the car
perpendicular to the ground with the door containing the broken key facing
down, then rock the car.
Gravity and inertia will force the broken key out.
To do this, you might have to ship the car to the moon . . .
Or you can just disconnect the door from the car so that you can skip the trip to the moon part ...
Tongue in cheek. |
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o**********e
发帖数: 18403 | 2 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: onetiemyshoe (onetiemyshoe), 信区: SanFrancisco
标 题: 华人孕妇: 2015年前马圈里出生的一个难民宝宝发来贺电
发信站: BBS 未名空间站 (Thu Mar 5 14:30:00 2015, 美东)
发信人: onetiemyshoe (onetiemyshoe), 信区: LosAngeles
标 题: Re: 为了月子中心华人孕妇的利益 (转载)
发信站: BBS 未名空间站 (Thu Mar 5 14:29:44 2015, 美东)
有的孕妇有，不见得别的孕妇有。
新闻一贯这样，把有钱的拿来埋汰，
70多年前也是这样害犹太人的。
即使有钱，人生地不熟，中心出了
事，她们心中惶恐，也应该有热心靠谱
的同胞去安慰帮忙。 雪中送碳
胜过锦上添花。 虎落平阳被犬欺，
哼，以后这些大肚婆恢复过来了，
又是一条”好汉“了，说不定以后
一起去抗议SCA－5，说不定
这帮BABY中会出美国亚裔总统呢。
同胞们多积德吧。 眼睛不要太近视。
---------------... 阅读全帖 |
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n******h
发帖数: 2482 | 3 What stops you to challenge yourself besides your inertia? The goal is not
to beat Bill or Steve. The goal is to challenge yourself and live a
meaningful life so you won't regret NOT doing things when you are old.
Regardless whether you are successful or not, at least you'll have a great
story to tell. A little bit entrepreneurial spirit is a better legacy than
a meager amount of money.
But again, everyone chooses his/her own lifestyle. There is no right or
wrong as long as it makes him/her happ |
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b********2
发帖数: 5191 | 4 http://online.barrons.com/article/SB500014240531119047970045772
It hit with the ferocity of an Old Testament plague, wiping out large
populations of homeowners in the U.S. Five million of the country's 76
million mortgage holders have lost their homes to foreclosure or lender-
ordered short sales since 2006, and an estimated 14 million more owe more on
their homes than their properties are currently worth. In all, some $7.4
trillion in homeowners' equity has been destroyed, according to Mark Zan... 阅读全帖 |
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b**t
发帖数: 67 | 5 【 以下文字转载自 JobHunting 讨论区 】
发信人: bert (liuliu), 信区: JobHunting
标 题: Job opening for MEMS Characterization Engineer
发信站: BBS 未名空间站 (Wed Apr 2 17:50:52 2014, 美东)
Recently, the wearable devices such as iwatch is a very hot topic.
Inside the wearable device, one of the key device is MEMS Inertia sensor.
Currently there is an opening in my company working as MEMS Inertial sensor
characterization engineer. I am the hiring manager and if you are interested
in this position and have the background in t... 阅读全帖 |
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a*********a
发帖数: 3656 | 6 cops don't shoot to wound. when they shoot, they shoot to kill. the main
torso, that s what they aim, simple as that. In a fast changing situation,
there is no time to aim for smaller less or more lethal area.
And when they shoot, they don't stop till they are confident the threat is
neutralized, that s a polite way to say the target is dead.
if you survived, it was your luck, not their intention.
So in this case, the cop probably kept shooting until the 1.9m, 300lb guy is
completely on the grou... 阅读全帖 |
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o**********e
发帖数: 18403 | 7 【 以下文字转载自 LosAngeles 讨论区 】
发信人: onetiemyshoe (onetiemyshoe), 信区: LosAngeles
标 题: Re: 为了月子中心华人孕妇的利益 (转载)
发信站: BBS 未名空间站 (Thu Mar 5 14:29:44 2015, 美东)
有的孕妇有，不见得别的孕妇有。
新闻一贯这样，把有钱的拿来埋汰，
70多年前也是这样害犹太人的。
即使有钱，人生地不熟，中心出了
事，她们心中惶恐，也应该有热心靠谱
的同胞去安慰帮忙。 雪中送碳
胜过锦上添花。 虎落平阳被犬欺，
哼，以后这些大肚婆恢复过来了，
又是一条”好汉“了，说不定以后
一起去抗议SCA－5，说不定
这帮BABY中会出美国亚裔总统呢。
同胞们多积德吧。 眼睛不要太近视。
----------------------------有人说 －－－－－－－－－－－－
吹吧, 使劲吹. 还以后会出美国牙医总统了. 你不知道总统竞选时陈谷子烂芝麻都翻出
来了, 到时被发现明明有钱却medical fraud 来当anchor baby, 到时候还真给华人涨
脸了. 没看到长... 阅读全帖 |
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S******4
发帖数: 2865 | 8 我觉得其实现在国内的走向还挺好的。
房价太高了，和谐社会有点恶，但大体形势还是往好的方向走。“民富”不都成为下个
5年计划的commitment了么？
在美国的一些幼稚的民运分子，天天民主民主的... It does not work in China.
看看人家阿X的民主搞得怎么样？除了孩子生得比较多以外，比国内差远了。苏联？伊
拉克？台湾？
微软一个几万人的公司就有了自己的culture，大家天天义愤填膺的complain，但要改
culture谁也改不过来。
中国十几亿人，几千年的culture，这种社会巨大的inertia，那是玩笔尖子的民运人士
能考虑到的？
倒不是说民运不好，但idealist就在一边意淫一下，拿个和平奖就算了，一定不能真正
当权，否则国家必乱。 |
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x*****8
发帖数: 10683 | 9 目前VA/DC/MA好的MCAT，LSAT，和GMAT的private tutor基本上都是这个价。
我以前在DC的The Princeton Review当MCAT tutor的时候，我只获得$25/hr。但TPR的
regional trainer，一位顶级美女告诉我们，她在这个培训班里面教我们的时薪是$200
/hr。
其实她的生物和化学水平未必有我高，她的物理看似强大，其实都是照本宣科，后来他
们更新了教材，出现了和rotational inertia有关的题目（比如一个球从有摩擦的斜面
上不打滑滚下来和打滑滚下来算最终速度）她就摸瞎了，等我上台把这个问题讲明白了
，她就很不高兴，从此都不正眼瞧我了。当然，她还教英语阅读和写作，这个是我望尘
莫及的。 |
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x*****8
发帖数: 10683 | 10 不打滑是很容易解的，但要记住实心球的moment of inertia是2/5*mR^2，而打滑按照
不带微积分的大学物理是没有定量解的，但可以通过能量守恒定律和不打滑的进行最终
速度的比较。
MCAT对物理的要求是很低的，不要微积分，比AP Physics C简单。 |
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W*N
发帖数: 1354 | 11 The tip of your right foot should point towards right. If point toward front
, your body's inertia might push your knee to be in front of your foot. That
will overly burden your knee as well. |
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e********g
发帖数: 2524 | 12 说啦，不敏感，上浮慢
钓panfish最佳的set hook是在浮漂下沉的过程中，后面那种橘红色的浮漂为了扔远和
能被小鱼拖下去放了个铁块在下面，inertia大了必然就不敏感嘛。上浮慢的话你以为
浮漂在水下其实好多时候已经饵被鱼吐出来了 |
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KV
发帖数: 5728 | 13 看了下价格，talica ii和daiwa 40双速差不多，Saltiga在2010以后的UTD相当不错，
inertia大幅度降低，耐用性和稳定性非常好。说不定哪天我也买只conventional用用。 |
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y****0
发帖数: 821 | 14 看到这个网页 http://www.japantackle.com/Topics/Drill_spool.htm
有句话很有意思 一般我都是上到最满 下次上一半看看
2. Don't spool line to the edge. Weight at distance from shaft adds more
inertia than weight near shaft. By spooling 30y less line, your spool has
the same effect of 8g weight reduction at spool shaft. |
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c******t
发帖数: 1733 | 15 Common errors performing classic lifts.
by Sergey Rudnev,IKSFA Master Coach
a) JERK 1. Error: feet are wider than shoulder width Consequences: reduction
of the distance and speed of acceleration of the bells, worsening of the
efficiency of the leg work. Causes: low mobility in the hip joints or lack
of knowledge of physics. Correction: in the former case I recommend rocking
in gymnastic bridge or static rack holds (1-5 minutes). In the latter I
recommend revising the section of physics entitled ... 阅读全帖 |
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c******t
发帖数: 1733 | 16 Common errors performing classic lifts.
by Sergey Rudnev,IKSFA Master Coach
a) JERK 1. Error: feet are wider than shoulder width Consequences: reduction
of the distance and speed of acceleration of the bells, worsening of the
efficiency of the leg work. Causes: low mobility in the hip joints or lack
of knowledge of physics. Correction: in the former case I recommend rocking
in gymnastic bridge or static rack holds (1-5 minutes). In the latter I
recommend revising the section of physics entitled ... 阅读全帖 |
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v*****r
发帖数: 2325 | 17 if you watch MMA which is closer to real fight than Boxing, you will find
there are way more KO in heavy weight(225+) than light weight( 155-)
in basketball, center is usually the least agile guy.
large weight person absorbs blow more completely, compare you punch a person
with punch an ant.
the ant will not be impacted much since its inertial is too small to take
any impact. this is a little exaggerated, but the physicis is similiar.
grip strength and core strength is very important to fight... 阅读全帖 |
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b******d
发帖数: 9694 | 18 用罄竹难书不为过分吧，我印象中最愚蠢的就是用了一堆重量级选秀权搞了狮子的Roy
Williams。。。
Claiming "disloyalty," Jerry Jones parted ways with two-time Super Bowl
winning coach Jimmy Johnson, later stating that "any one of 500 coaches"
could have won with the Cowboys. He handed the reins to Barry Switzer, the
Admiral Stockdale of the NFL, and Barry rode the last gasp of Cowboys
inertia to a third title. It's all been downhill from there. Coaches Dave
Campo, Chan Gailey, Wade Phillips. Quarterbacks Chad Hutchinson, Quincy
Carter, retr... 阅读全帖 |
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f*********n
发帖数: 11154 | 19 Lanber应该是inertia trigger，左右决定首发的管，然后连续扣动扳机两次，两个管
依次击发。但
是如果没有上膛，所以打完一个以后没有后坐力将扳机归位，第二个就不会击发。 |
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d*****n
发帖数: 908 | 20 "
The Benelli M4, by contrast, uses the company's Auto-Regulating Gas-Operated
(A.R.G.O.) system. This gas-operated method reloads and ejects each
successive round via the action of three gas pistons. This configuration
gives the M4 faster cycling, less recoil and lowers the chance of a jammed
round, providing soldiers and police faster, more accurate firing during
combat situations.
"
这段属实吗？有点怀疑。
我是打算买M2的，觉得inertia operation的应该比gas-operated的可靠，干净，需要
的维护少一些。看到过一些人的M2打了1500-3000发，毫无问题。倒是还没看到M4的同
... 阅读全帖 |
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a***a
发帖数: 8941 | 21 M2 is easy to maintain.
As long as you do not make it like a Xmas tree, inertia driven is fine.
Benelli gave M4 to US military because they need to add lots of appendix to
it, such as sight, scopes, night vision, laser, flashlight, etc.......
as long as you do not add lots of heavy things on it, M2 is reliable enough,
maybe more reliable than gas operated M4, and easier to maintain |
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T********e
发帖数: 533 | 22 M2 Field 21"管$480，Tactical 18.5"根据前瞄的不同大概$400-$480，比一个M2整枪
还是便宜不少，再弄个管子不就长短兼顾了么。换个更短的管子，不会增加整枪重量，
应该也不会影响那个inertia driven的自动方式吧。
呵呵，你准备把你的SBE2出手了啊？玩飞碟也准备撸管了？哦，话说你好像还有个O/U
是吧？ |
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s**********1
发帖数: 497 | 23 Technically, the risk of slamfire is inherent in any design that uses a free
-floating firing pin.
Spring-loaded firing pins prevent slamfires because the pin cannot easily
move inside the bolt. A proper strike from the firearm's hammer will
overcome the resistance of the spring, but ordinary inertia will not.
From Wikipedia
看来得选Spring-loaded firing pins ，不能选free-floating firing pin |
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b*****e
发帖数: 5133 | 24 70 series 1911 firing pin is not free-floating. Current iteration uses a
strong firing pin return spring and lightweight titanium firing pin that
greatly reduce firing pin inertia from a dropped gun and can pass california
doj handgun drop test.
However, sear tripped by strong shock or a broken sear will certainly
release the hammer and fire the gun in this configuration. |
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N*********r
发帖数: 1190 | 25 那就买把穷人的benelli, same inertia operation.
Stoeger M2000 or M3500
原理一样，做工和reliable程度看运气，但价钱在那里摆着啊。
打猎不是那么在乎100%reliable， 防身嘛，你真的需要shotgun防身并且开两枪以上吗？ |
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T********e
发帖数: 533 | 26 那就上Benelli的inertia-driven的半自动吧，应该没有橡胶圈。扳机护圈不同型号有
不同的样子吧？须刀比较不感冒哪一款的扳机护圈？ |
|
T********e
发帖数: 533 | 27 小七兄的Benelli半自动上了没？据说Benelli的inertia-driven的自动机制如果遇到比
较弱的弹药会导致不能成功cycle，不妨用这个弹药试试看... |
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q********1
发帖数: 1480 | 28 Beretta 我只用别人的打过几次，没有发言权。
一般来说Inertia Driven 枪上弹快，但后座应该比气动的要大。加了ComforTech的
SV号称后座要减少很多。在我看来，差别和气动半自动相比不是很明显。和Browning
Silver Sporting 比，打target load 时的后座两枪对我来说都可以忽略不计。我用SV
打过3.5寸的00 buckshot, 后座也是可以承受，没有让我感到很不舒服。当然20发打
完后有点肩酸手抖。 所以我觉得选飞碟枪， 后座小并非首要的条件， fit和指向性最
重要。 可靠性也要考虑， 毕竟一打就是几百发，这和打猎不同。
SV 和气动的比， 确实比较干净。并且该枪拆卸特别方便，清起来较容易。话又说回来
，像我这样十天半个月去不了一次靶场的，擦枪并不是一个很大的负担。干净也罢，不
净也罢，每次打完我都要擦。其实擦枪也是个享受。我喜欢把枪一支支擦完，排整齐的
感觉。
Super Vinci 其实是枝鸟枪，打飞碟并不完全合适。并且在刚买的时候，比较挑弹，如
打Remington light target load 时出现过几次不能上弹... 阅读全帖 |
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e*f
发帖数: 1709 | 29
Benelli 20ga inertia shotgun 打鸟太理想了，又轻，又快，又可靠，又几乎没啥可
清洗的。导气枪的优势主要是后坐稍轻（后坐质量大，膛压低）。 据说以前竞赛是
Remington 1100 多，现在都是beretta 导气。 |
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e*f
发帖数: 1709 | 30
手小用左轮。
双动左轮应该是最适合家防的短枪了，几乎不会扣扳机后发现不响，装弹放箱里10年也
不影响，什么开花弹都能打响。
除了楼上推荐的，还可考虑gp100, Chiappa rhino等等。
不过真要家防有胜算还是要打一场不对称的战斗，用低穿透，高火力输出的武器狠狠欺
负贼人。
推荐半自动霰弹枪
1. Remington versa max tactical $1000+
2. Benelli montefeltro, m2 or other inertia shotguns $900+ |
|
e*f
发帖数: 1709 | 31 Large calibre pistols better have long and muzzle heavy barrels to provide
large moment of inertia, which helps reduce the upward movement of the
muzzle. |
|
e*f
发帖数: 1709 | 32
And a simple way to put on a lot of mom of inertia is to attach a heavy
muzzle suppressor. |
|
e*f
发帖数: 1709 | 33 Here is my 2 cents:
Rifles: Ruger mini 14 ranch version with 5- or 10- round detachable magzines
, or
Browning Bar semi automatic hunting rifles.
Sidearms: Ruger gp 100, S&W 686 or any NY legal semi automatic pistols.
Shotguns: Remington 870, Mossberg 500, or semi automatic shotguns such as
Remington Versa Max series, Benelli inertia drive series such as M2,
Montefeltro etc. |
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e*f
发帖数: 1709 | 34 The design is interesting. I think its advantage becomes more apparent
when the barrel is short, say 2", in which a traditional design has too
small
moment of inertia. So I believe their claim to be more accurate
than a traditional 2". As the barrel gets longer, their advantage becomes
smaller, other considerations take more weight. |
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a***a
发帖数: 40617 | 35 本来就是两面说辞都有，那我干脆继续“有才”一下
给你所说cognitive error和psychological bias
之所以目标要高是为了克服inertia或者说status quo |
|
a***a
发帖数: 40617 | 36 本来就是两面说辞都有，那我干脆继续“有才”一下
给你所说cognitive error和psychological bias
之所以目标要高是为了克服inertia或者说status quo |
|
v*****r
发帖数: 2325 | 37 carwin might help Cain, those hard head shots to Lesnar is damage to Lesnar'
s brain and mental.
reported that lesnar verbally sumbitted to Cain earlier in the round, but
Cain didn't hear it.... cain later admitted he didn't punch all that
agressively early on.
head shots in Heavyweight are deadly to fighter's career.
heavyweight increases the damage double fold:
opponent's punch power increased due to the larger BW;
lesnar's hugh BW increase his own inertia, so the blow of Cain's punch
absorbed... 阅读全帖 |
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s*****2
发帖数: 472 | 38 I dislike demo binding. looks cheap, heavy, too many moving parts. 160 might
a bit too short for u even for east coast. 166 or 170 would be fine. The
front width of 125mm may add much moment of inertia for quick turns in mogul.
But overall I would buy the blizzard iqon.
106. |
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s******n
发帖数: 2279 | 39 找到篇文章，有些观点和我完全一致
The football team Guardiola with the Wholesale Soccer Jersey Supplier has
brought a revolutionary change. Cruyff wrote a column in the second, only
after Di Stefano led Real Madrid and 70 of the last century Ajax. Barcelona,
now you can create one, this time? No doubt they do. If this year in May
and again standing in the Champions League on top of the podium, no one
dares to win. But even if you can not win, or even in the final at Wembley,
the team has made history in football... 阅读全帖 |
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S**C
发帖数: 91 | 40 This is very complicated stuff. It cannot be said.
there are some key words, for swimming, it is:
Breathing, body shape and psycology.
And another word:
move!!! water, like the rest of the world, it never stop, so is us, we never
stop breathing, right?
So you need to keep moving.
Then there is an oppose word:
Inertia, we don't move unless we are forced.
Just imaging the beauty of lazily sliding up and down with water.
Once you get the feeling, if someone said he wants to exchange with the
swimmi... 阅读全帖 |
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i*********5
发帖数: 19210 | 41 腿和打水
常见打水错误
Top Freestyle Flutter Kick Mistakes
GoSwim - Top Freestyle Flutter Kick Mistakes
TheRaceClub - Secret Tip Legs
Propulsion
Lift
Stabilizing Force
Inertia |
|
i*********5
发帖数: 19210 | 42 建议你多看看Gary Hall Sr.的secret tip legs系列
TheRaceClub - Secret Tip Legs
Propulsion
Lift
Stabilizing Force
Inertia |
|
d**y
发帖数: 18174 | 43 你的孩子蝶泳好，所以腰和髋的动作不可避免地带有蝶泳腰部动作的痕迹。如果我是你
的话，会和教练探讨一下如何改善自由泳转体，并且不干扰蝶泳训练的问题。如果自由
泳的转体的同时难以eliminate up-n-down motion的话，最低要求是腰部保持紧张，
torso整体可以在水里下沉一点，但是腰部不要弯；这一点torso的起伏用打水来补偿。
关于打水，你可以给小孩看看gary hall关于克服inertia的那一段讲解。
处理得当的话，不错的自由泳途中游加上出发和转身蝶腿如虎添翼，就是一个小号的
phelps，至少SCY成绩自由泳成绩差不了。 |
|
d**y
发帖数: 18174 | 44 你的孩子蝶泳好，所以腰和髋的动作不可避免地带有蝶泳腰部动作的痕迹。如果我是你
的话，会和教练探讨一下如何改善自由泳转体，并且不干扰蝶泳训练的问题。如果自由
泳的转体的同时难以eliminate up-n-down motion的话，最低要求是腰部保持紧张，
torso整体可以在水里下沉一点，但是腰部不要弯；这一点torso的起伏用打水来补偿。
关于打水，你可以给小孩看看gary hall关于克服inertia的那一段讲解。
处理得当的话，不错的自由泳途中游加上出发和转身蝶腿如虎添翼，就是一个小号的
phelps，至少SCY成绩自由泳成绩差不了。 |
|
b******l
发帖数: 50 | 45 铁老大和飘飘都建议把点评发到版面上，让大家都能看到。另外有些家长希望能看
到更多经验。在此给小朋友做一点介绍，因为不想post Video。目前不到10岁，全部
EVENTS 10U BB。BB 是一个重要门槛。游泳好处多，但代价不小。主要是时间。我周围
朋友（sample～10），满11岁（进入MIDDLE SCHOOL）只有少数10U BB EVENTs 的, 全
部quit。有A time EVENT的，全部continue。满13岁（8年纪，有些课要记入大学申请
GPA），没有12U A time 的，全部quit。有AA time，全部continue。根据USA
SWIMMING WEBSITE
AAAA 98% This standard means your swimmer is ranked in the top 2% of
swimmers their age-group, their same sex, in that stroke and distance.
AAA 94% This standard means your swi... 阅读全帖 |
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m****z
发帖数: 978 | 46 Here are some of my experiences on over gliding. I am a newbie as well so
this could be totally wrong or wrong for people that have different issues
than me.
I love TI program to death. However, I made some mistakes while doing TIs,
because TI is my first training book/ “program” and I was doing it with no
coaching and not very many prior knowledge about freestyle.
My over-gliding issues are mainly my own fault, not TI’s fault. IMO, TI
guys may tend to become over glider.
Some of the fundame... 阅读全帖 |
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m****z
发帖数: 978 | 47 首先我认为TI非常好，如果在练，应该好好练，练到家。
1. 讲解清楚，分小步来，门槛低，谁都能上手
2. 不累，进步快，更提高我对游泳的积极性。
3. 减小阻力，重视转体，不容易受伤，（40-100）对我的收益太大了。
4. 一年多从不大会游自由泳，到游3000码（200一组，30秒左右休息）。
这时我自己觉得游的很舒服，一点不累想游多远就多远。但是速度提升越来越小（40秒
50码）。开始有点心痒痒。
在goswim 学了flip turn, 高兴了两天，又开始有点心痒痒。
看了Over glider 吓了一跳，几乎所有的都在说我自己，我就不列了，可以看网上的。
- A distinct glide and dead-spot in the stroke timing, A distinct pause at
the front of the stroke
我以前在RaceClub 就听说过inertia 惯性和游泳。 所以觉得有道理，我就开始加快频
率，开始练变速和冲刺set，以前只练Drill和巡航游。现在各样都练，drills + 长短
快慢set。
Gl... 阅读全帖 |
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m****z
发帖数: 978 | 48 Here are some of my experiences on over gliding. I am a newbie as well so
this could be totally wrong or wrong for people that have different issues
than me.
I love TI program to death. However, I made some mistakes while doing TIs,
because TI is my first training book/ “program” and I was doing it with no
coaching and not very many prior knowledge about freestyle.
My over-gliding issues are mainly my own fault, not TI’s fault. IMO, TI
guys may tend to become over glider.
Some of the fundame... 阅读全帖 |
|
m****z
发帖数: 978 | 49 首先我认为TI非常好，如果在练，应该好好练，练到家。
1. 讲解清楚，分小步来，门槛低，谁都能上手
2. 不累，进步快，更提高我对游泳的积极性。
3. 减小阻力，重视转体，不容易受伤，（40-100）对我的收益太大了。
4. 一年多从不大会游自由泳，到游3000码（200一组，30秒左右休息）。
这时我自己觉得游的很舒服，一点不累想游多远就多远。但是速度提升越来越小（40秒
50码）。开始有点心痒痒。
在goswim 学了flip turn, 高兴了两天，又开始有点心痒痒。
看了Over glider 吓了一跳，几乎所有的都在说我自己，我就不列了，可以看网上的。
- A distinct glide and dead-spot in the stroke timing, A distinct pause at
the front of the stroke
我以前在RaceClub 就听说过inertia 惯性和游泳。 所以觉得有道理，我就开始加快频
率，开始练变速和冲刺set，以前只练Drill和巡航游。现在各样都练，drills + 长短
快慢set。
Gl... 阅读全帖 |
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a****n
发帖数: 4734 | 50 我记得swing weight就是转动惯量的意思：I=M*R^^2
理论上应该用拍子的长度做积分来算。
补充，SWING WEIGHT还和HEAD SIZE, BEAM THICKNESS有关。
就一般意义来说，主要和重量和平衡有关。
Swingweight: Measure of how heavy a racquet feels when swung, i.e. maneuverability. Also known as Moment of Inertia or Second Moment, swingweight is dependent on several factors, including racquet weight, length, balance, head size.
http://www.tennis-warehouse.com/LC/RacquetStringTerms.html |
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