改进的平纹纺织，诸如牛津衬衫布和方块纺织都比塔夫塔纺织中纱线容易移动。
However, modified plain weaves, such as the oxford and basket, can provide greater yarn mobility than do taffeta weaves .
大卫：你们中的许多人都曾玩过弹球游戏，这个游戏就只有一个方块上下移动，接住反弹来的球。如果两人玩时，就会出现一对方块，可以进行对抗赛。
David: Many of you will have seen the Pong game where essentially a single rectangle moves up and down where a ball bounces off it, or a pair of them so two people can play against each other.
按esc退出锁定模式，并且再次确认相位显示中的方块是在音叉持续发声时停止移动的。
Press ESC to cancel locking mode and double check that the phase display stands still when the tuning fork is struck.
按esc退出锁定模式，并且再次确认相位显示中的方块是在音叉持续发声时停止移动的。
Press ESC to cancel locking mode and double check that the phase display stands still when the tuning fork is struck.
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