常見例句雙語例句The piston designed non-circular pin-hole can reduce the centralized stress and extend the work life of the piston.將活塞銷孔設(shè)計爲(wèi)異形銷孔可有傚降低銷孔應(yīng)力集中，延長活塞使用壽命。 返回 non-circular hole