名词
中文翻译：管道
同义词：
['conduit', 'tubing', 'pipeline']
例句：
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1.The engineer designed a new duct runfor the factory.
工程师为工厂设计了一种新的管道。
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2. The duct run is essential formaintaining proper airflow in the building.
管道对于保持建筑物内空气流通至关重要。
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3. Theduct run was installed quickly and efficiently,reducing noise levels significantly.
管道安装迅速且高效，显著降低了噪音水平。