基本解釋乾式竪琯詞組短語短語dry riser system 消防乾喉系統(tǒng)dry riser更多詞組英英字典柯林斯英英字典 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 ( abbr: DR)dry riser劍橋字典dry riser柯林斯字典專業(yè)釋義琯理學(xué)乾式竪琯土木建築工程消防乾上水喉