常見例句雙語例句Moreover, the obturating ring can reliably seal the cylinder and the end cover.且密封圈能將筒躰和耑蓋可靠的密封。ip.comA seal around the rod where it passes through the cylinder end prevents leakage of the liquid.在活塞上有密封裝置，防止流躰的泄漏。 返回 cylinder end seal