击球

In golf swing, it takes 0.8 s from the end of back swing to impact, if the average angular acceleration is 1.5 rad/s2, what is the angular velocity at the impact?

举例 examples ：1。高尔夫挥杆，自后往前至击球点费时0.8秒，已知平均角加速度为1.5rad/s2，求在击球点的速度为何？

Base hit ; hit that enables a batter to reach first base

安全打（使击球手能上第一垒的击球）。

Relating to or being a play in which a base runner starts to run on the pitch and the batter attempts to hit the ball to protect the runner.

打带跑的棒球比赛的一种战术或与其有关的，投球手开始投球且击球员试图击球以使跑垒员向前跑一垒

Sports Toward or designating the side of the field facing the batsman in cricket.

击球员右前方的：在板球赛中，面向或指向正对击球手的那一边

A batter stands in the batter 's box at one side of the plate, and attempts to bat the ball safely into fair play.

一名击球手站在牌子旁边的击球手区里，试图安全地把球击入场内。

Her head has remained relatively still through the entire stroke. Look how you can draw a straight line from her chin to the toes of her left foot. It appears that this forehand will be a winner, but she's keeping her eye on the ball just in case.

她击球时有点像罗杰·费德勒，她的头部在整个击球过程中保持相对静止，看起来就好像这个正手即将获胜，但她的眼睛紧紧跟跟随着球以防意外。

Chip shot A short approach shot of low trajectory usually hit from near the green.

切削击球：通常从接近果岭处击打的低轨线近距离击球。

If the batsman has any part of his body or his bat (if he's holding it) on the ground behind the line of the crease, then he cannot be run out (except if both batsmen are on the same side of a crease); frequently it is a close call whether or not a batsman gained his ground in this way before the bails were removed.

如果击球手身体任意部分或他的球板接触区域线后的地面，那么他不能被截杀（除非两名击球手在区域线的同侧）；通常，击球手是否在横木被移去之前如此&触地&均是差之毫厘。

The same name as on the 1st fairway wood and the ball, the mixed rod also stressed the effects of Face-Centered, that is, the head of the center of gravity location and the most central of the sweet spot even as first-line in order to form a ball the best effect, At the same time expanding the sweet spot hit, in addition to showing stability ball is more, it can play the advantages of the distance.

就像同名的一号木杆和球道木一样，混血杆也强调Face-Centered的效果，亦即把杆头的重心位置与最中央的甜蜜点连成一线，以便形成最佳的击球效果，同时扩大击球甜蜜区，除了展现击球稳定度之外，更可发挥距离的优势。

Do not concede a frame or match when you have missed a shot or whilst your opponent is still at the table.

在您击球失误或者对手仍在球台边击球时认输，要等到对手击球结束才可以这样表示。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。