Many areas in China have studied on the right preventivemaintenancetime and maintenance measures in recent years.
近年来,我国多个地区开展了预防性养护时机和养护措施的研究。
2
The preventivemaintenance during the normal service period of the corroded chemical structural is to ensure the structure fulfill its designed service function in the given service time.
在正常使用过程中化工结构的预防性维修,主要目的是保证结构在预定时间内能完成其设计使用功能。
3
As a kind of initiative maintenance, preventivemaintenance mainly aims at prolonging service life of medical equipment, extending their fault-free time and lowering the whole life expense.