像浮萍一样的植物漂浮在静止和缓慢流动水面上，而那些有根而且茎干柔软的植物能在快速流动的溪流中站立。

Plants like duckweeds float on the surface of still and slow-moving waters, while those with roots and flexible stems can stand in swift -flowing streams.

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将它认为是在缓缓流动的一条小溪上的一片漂浮树叶。

Think of it as a leaf floating by on a slow-moving stream.

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溶液的流动方向由上而下有利于沉淀物的沉降，减少沉淀物漂浮对阴极质量的影响。

The flowing direction of the solution from top to bottom is beneficial for the deposition of the deposit so as to reduce the influence of the floating of the deposit on the cathode quality.

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