常見例句Nonpoisonous light and long service life. 無毒、質(zhì)輕、使用壽命長。Ah, yes. Now what about service life? 哦,好的。關(guān)於使用壽命呢?Lengthens the engine service life. 延長發(fā)動機使用壽命。Elastic sealing, no leakage and long service life. 彈性密封,零泄漏,使用壽命長。Good sealing,wear-resising,longer service life. 密封可靠，耐磨損，使用壽命長。Brand new bearing prolongs the service life. 全新軸承，增加使用壽命。 返回 service-life