名词
中文翻译：双曲管
同义词：
['sigmoid tube', 'bifurcated conduit例句：1. The engineer designed the sigmoid conduit to fit snugly into the space.（工程师设计了双曲管，使其紧密地适应空间。）2. The sigmoid conduit was used to transport wastewater from the factory.（双曲管被用来从工厂输送废水。）']
例句：
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1. The engineer designed the sigmoid conduit to fit snugly into the space.
工程师设计了双曲管，使其紧密地适应空间。
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2. The sigmoid conduit was used to transport wastewater from the factory.
双曲管被用来从工厂输送废水。
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3. The sigmoid conduit is a critical component in the construction of pipelines.
双曲管是管道建设中的关键部件。