常見例句雙語例句In the cylindrical valve plug, the channel is generally rectangular;在圓柱形閥塞中，通道一般成矩形；The plug is seated in the body seats when the valve is in both open and closed positions.儅閥門処於開啓和關(guān)閉狀態(tài)時，閥塞都位於閥躰閥座內(nèi)。In order to solve the problem stated above, a new pilot overflow two-way plug-in type descaling valve has been developed successfully.爲(wèi)解決這些問題，新研制成功了先導(dǎo)溢流二通插裝式除鱗閥。 返回 plug in valve