名词
中文翻译：地下管道
同义词：
['subterranean pipelines', 'underground conduits', 'subsurface pipelines']
例句：
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1. The city's sewage system is designed to carry wastewater from the streets to the treatment plant beneath the ground.
城市的污水系统设计用来将街道上的废水输送到地下的处理厂。
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2.The construction of these pipelines required extensive excavation and reinforcement work.
这些管道的建设需要大量的挖掘和加固工作。
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3. The underground pipelines were constructed using a combination of steel casing and concrete lining.
这些地下管道采用了钢套管和混凝土衬里的结合方式建造。