名词
中文翻译：变流道
同义词：
['variation', 'channel', 'passage', 'conduit', 'groove', 'duct']
例句：
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1.The engineer designed a varying-arca channel to improve the flow of water through the pipeline.
工程师设计了一个变流道来改善管道中水流的流动。
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2.The scientists used a channel to conduct experiments on the properties of materials.
科学家们使用一个通道来进行材料属性的实验。
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3. The construction workers were working on a duct that would connect two buildings.
建筑工人正在施工一个连接两座建筑物的管道。