短語(yǔ)詞組短語(yǔ)guard van valve 車(chē)長(zhǎng)閥guard s valve 車(chē)長(zhǎng)閥turbine guard valve 水輪機(jī)保護(hù)閥guard s van valve 車(chē)長(zhǎng)閥guard against error valve 保險(xiǎn)閥guard 's van valve 車(chē)長(zhǎng)閥;守車(chē)制動(dòng)閥valve guard 閥箱;閥限位器;閥檔板;閥片行程限制器delivery valve guard 吐出閥限位器 返回 guard valve