Distribution medium for the latter two ball and change the flow of media.
后两种球阀用于分配介质与改变介质的流向。
If you change your mind, you think of something else and lose the ball.
如果你改变了你的想法，你就想到其他一些东西，丢掉了球。
Please change for another ball.
请换另一只球。
If you press this ball hard, it will change its shape.
如果你用力挤压这个球，它就会变形。
If you press this ball hard, it will change its shape.
如果你用力挤压这个球，它就会变形。
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