基本解釋排污閥英漢例句雙語(yǔ)例句The relief valve should never be solidly piped into a drainage ditch, sewer or sump.安全閥絕不能用堅(jiān)硬的管道連接到排水溝、水管或污水坑里。The invention provides a water discharging device with convenient use, comprising a sluice valve, a water discharging pipe component with the upper end having a water outlet, a sewer pipe;一種使用方便的放水器，其中包括水閘、上端帶有放水口的放水管組件、 下水管；ip.comsewer valve更多例句詞組短語(yǔ)短語(yǔ)sewer sluice valve 污水管沖洗閥Sewer by -path protection valve 下水道止回流閥sewer valve更多詞組專(zhuān)業(yè)釋義材料科學(xué)排污閥