名词短语
中文翻译：回流波纹
同义词：
['backflow', 'backwater ripple']
例句：
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1.The river's backflow ripple is a natural feature that attracts tourists.
河流的回流水纹是一个自然景观，吸引了游客。
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2. The engineer studied the backflow ripple to understand how it affects the flow of water.
工程师研究了回流水纹，以了解它如何影响水流。
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3.The backflow ripple is a delicate ecosystem that requires careful management.
回流水纹是一个脆弱的生态系统，需要谨慎管理。