dry riser 中文意思是什麼
dry riser
解釋
乾式豎管-
Fire hydrant systems equipment - specification for inlet breechings for dry riser inlets
消防栓系統設備.第3部分:乾式水進口用進水支管規范 -
Fire hydrant systems equipment - specification for boxes for foam inlets and dry riser inlets
消防栓系統設備.第5部分:泡沫入口及乾式水嘴用箱規范
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