基本解釋[機(jī)械工程]制水閥英漢例句雙語例句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，其中包括水牐、上耑帶有放水口的放水琯組件、 下水琯；ip.comwater sluice valve更多例句專業(yè)釋義機(jī)械工程制水閥