常見例句雙語例句A valve body is connected with a tower cover through soft seal, and pressed by a bracket through a bolt. The valve rod, the tower cover and a gland are pressed and sealed by filler.閥桿、塔型蓋、格蘭通過填料壓 緊密封，閥桿與執(zhí)行機(jī)構(gòu)通過固定于支架上的推力螺母實(shí)現(xiàn)上下運(yùn)動(dòng)。ip.com 返回 gland bolt