Pool Cue

基本解释

"Well, he just swallowed the cue ball off the pool table, whole" says the bartender.
“嗯，它只是把舞池桌子上的酒全部喝光了。”服务生说。
If you were writing a pool game you could use a PickRaySegment to represent the pool cue and you could pick with BoundingSphere to detecting collisions between the balls.
如果你正在编写一个撞球游戏，你可以使用PickRaySegment表示撞球杆并使用BoundingSphere拣选以检查球与球之间的碰撞。
Though billiards had already been popular for more than 100 years at that time, Mingaud was the first person to round the end of a pool cue with a file and apply a leather tip to it.
尽管当时，台球已盛行了百余年，而敏高德却是第一个使用锉刀把球杆尾端磨圆，并用皮子包上的人。