碰球展品演示的是弹性碰撞和动量传递的原理。
Here the principles of elastic collision and dynamic transmission are demonstrated.
踢足球的人两只胳膊一点儿毛病都没有，可却规定你不准用胳膊碰球！
People with two perfectly good arms play soccer but the rules say that you can't use them to touch the ball!
英式足球几乎不允许身体接触，严禁用手带球，只有守门员可以在比赛中用手碰球。
It has little body contact and carrying the ball with hand is forbidden. Only the goalie is allowed to use his hands during play.
当人们在海岸上发现这只小毛毛球，他们往往会做出对待失而复得的小猫咪或小狗狗时的举止，可是，这些是野生动物，不能乱碰它们。
When people find this little furry ball on the shore, they tend to react as they would after finding a lost kitten or puppy. But these are wild animals; they have to be left alone.
弗格森说：“很明显弗莱彻得到了球，他没有碰跳起来飞向空中阿什利·科尔，然后德罗巴在进球时已经拉倒了韦斯·布朗。”
"Clearly Darren Fletcher has won the ball," said Ferguson. "he's never touched Ashley Cole, who just jumped up in the air, and then [Didier] Drogba has pulled [Wes] Brown to the ground at the goal."
我首先撞击乒乓球，使它碰保龄球。，不，碰台球。
I will first bounce the ping-pong ball off the bowling ball... the billiard ball.
球坑村的屋子与屋子相互挨着，屋檐下的人心有时互相较着劲，有时互相帮着忙，有嗑碰，有争吵，又有和气。
The room and the room next to each ball pit village, under the eaves of the hearts of each other sometimes struggle with each other sometimes help busy, have teeth touch, quarrel, and gas.
费德勒有力的反手一拍，罗迪克几乎碰不到球。
Federer stroked a big backhand, and Roddick could barely get a racket on it.
对于远离身体的来球，你可以从不同的方向回击球，并且你的回球需要有力量，而不只是单纯地跑过去用拍子碰一下球或让球停住。
The ball is angling away from you. While you can take different directions to intercept it, you want to hit the ball back with some power and not simply run over and touch it or just stop it.
本文介绍在总体设计时防止抛锚碰擦船首球鼻的计算方法，以预测和防止事故发生。
This paper introduces calculational method and mathematical model to predict and prevent the collision between bow bulb and the anchor during the early design stage.
游戏描述：用白球，使两个颜色相同的毛球碰在一起。
Game Description: Combine two fluffy balls of a kind by hitting them with the white shell.
在台球完全弹性碰撞的假设下，运用基本的理论力学原理对主球在碰撞目标球后、碰桌边前的运动规律进行了分析，给出了这段时间内主球的运动控制方程。
With the assumption that the billiards is perfectly elasticity and by adopting the basic theory of theoretical mechanics, the track of the main ball has been simulation analyzed.
在台球完全弹性碰撞的假设下，运用基本的理论力学原理对主球在碰撞目标球后、碰桌边前的运动规律进行了分析，给出了这段时间内主球的运动控制方程。
With the assumption that the billiards is perfectly elasticity and by adopting the basic theory of theoretical mechanics, the track of the main ball has been simulation analyzed.
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