名词
中文翻译：平顶涵洞
同义词：
['flat-bottomed culvert', 'flat-topped culvert例句：1. The construction of the new highway will require the excavation of several flat-topped culverts.（新高速公路的建设将需要挖掘几个平顶涵洞。）']
例句：
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1. The construction of the new highway will require the excavation of several flat-topped culverts.
新高速公路的建设将需要挖掘几个平顶涵洞。
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2. Flat-topped culverts are often used in areas prone to flooding.
平顶涵洞通常用于易发生洪水的地区。
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3.The engineer carefully designed the flat-topped culvert to ensure proper drainage.
工程师仔细设计了平顶涵洞，以确保排水畅通。