On the condition that the continuous service time is given, the main point of the preventive maintenance is the decision of maintenancereliability level.
当后续使用时间已知时，预防性维修的关键是维修可靠度水平的确定。
2
These proven industrial lasers have demonstrated high reliability and the associated support and maintenance benefits.
这些工业激光器已经经过了高可靠性、技术支持和维护等验证。
3
The new improved technology includes high pressure turbine airfoil advancements that enhance operational reliability, lower maintenance costs and improve fuel burn retention.