常見例句雙語例句The critical problem for preventive maintenance is how to confirm the maintenance time.預防性養(yǎng)護的關鍵問題是養(yǎng)護時機的確定。Using the concept of delay time, a preventive maintenance(PM) model suitable to practice is proposed.利用時間延遲概唸建立了預防維脩模型。Many areas in China have studied on the right preventive maintenance time and maintenance measures in recent years.近年來，我國多個地區(qū)開展了預防性養(yǎng)護時機和養(yǎng)護措施的研究。 返回 preventive maintenance time