名词
中文翻译：流动标记
同义词：
['flowmark', 'flowline', 'flow notation']
例句：
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1. The engineer used a flow mark to indicate the direction of the water flow.
工程师用一个流动标记来指示水流的方向。
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2. The company has implemented a new flow mark system to improve efficiency.
该公司已经实施了一个新的流动标记系统以提高效率。
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3. The scientist noticed that the flow mark on the sample was consistent with the manufacturer's specifications.
科学家注意到样品上的流动标记与制造商的规格一致。