短語詞組短語open automatic sprinkler system 開式滅火系統(tǒng)open sprinkler head 開式灑水噴頭open sprinkler system 開式噴水滅火系統(tǒng)open -type sprinkler system 開式系統(tǒng)automatic open -close sprinkler 自動(dòng)啟閉噴頭 返回 open sprinkler