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单词 dry riser
释义

Collins Concise English Dictionary © HarperCollins Publishers::
dry riser n
  1. a vertical pipe, not containing water, having connections on different floors of a building for a fireman's hose to be attached. A fire tender can be connected at the lowest level to make water rise under pressure within the pipe
    Abbreviation: DR
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更新时间:2025/7/24 10:21:27