Sometimes the flowing stream runs dry.
有时涓涓河流也干涸见底。
Oh, I went to the flowing stream and what did I hear?
噢,我跟随流动的小河听见了什么声音? ?
The flowing stream divides into two approximately equal parts; half the flow tends to force the valve open while the other half tends to force it closed.
液流分成近似相等的两部分,一半流体的压力使阀门开启,而另一半流体使阀门关闭。
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