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1·This valve regulates the flow of water.

这个阀门调节水流。《牛津词典》

2·The stones have been worn smooth by the constant flow of water.

不停的流水把这些石头冲刷得很光滑。《牛津词典》

3·While previously the gap between the continents had allowed a free flow of water, now the isthmus presented a barrier that divided the Atlantic Ocean from the Pacific Ocean.

以前，大陆之间的鸿沟允许水自由流动；而现在地峡形成了一道屏障，把大西洋和太平洋分隔开来。

4·Rivers can differ in size and there is no strict rule on how big a flow of water must be to be called as a river.

河流的流域会有不同，对于有多大的流量才能被称为河流没有严格的规定。

5·We should meter a flow of water.

我们应该计量下水流。

6·A free flow of water came from the pipe.

水从管道里通畅地流了出来。

7·The floodgate was closed to control the flow of water.

为了控制水流，防洪闸门关闭了。

8·We measure the flow of water, using a water meter.

我们用水表测量水的流量——表示“测量”的方法。

9·They regulate the flow of water by the sluice gate.

他们用水闸门控制水的流量。

10·The flow of water over the underwater hull portions creates a hydrodynamic force.

水流的水下船体部分创建了一个水动力。