名词
中文翻译：Unknown
同义词：
['subterranean piping', 'underground conduits', 'underground pipelines例句：1. The city has extensive underground piping systems for water and sewage.（这个城市有广泛的地下水管系统用于供水和排污。）']
例句：
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1. The city has extensive underground piping systems for water and sewage.
这个城市有广泛的地下水管系统用于供水和排污。
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2. The construction crew had to dig through the ground to access the underground piping.
施工队不得不挖掘地面以到达地下管道。
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3. The underground piping was damaged during the earthquake, causing a significant problem.
地震期间，地下管道受损，造成了严重的问题。