名词
中文翻译：中央下水管
同义词：
['central drain', 'central conduit', 'central pipe']
例句：
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1. The central downcomer is essential for maintaining the proper water pressure in the building.
中央下水管对于保持建筑物内适当的水压至关重要。
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2. The engineer designed the central downcomer to distribute water evenly throughout the building.
工程师设计了中央下水管，以确保整个建筑中的水流均匀分布。
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3.During a storm, the central downcomer helps prevent flooding by directing excess water away from the main living areas.
暴风雨期间，中央下水管通过将过量的水引导到主生活区之外，帮助防止洪水泛滥。