Rainy days the most crucial is of automobile engine maintenance.
雨天最为关键的是对汽车发动机的养护。
Be responsible for maintenance and management of petrol, engine oil and natural gas equipment.
负责汽油、机油、天然气等辅助设施的使用与维护管理。
Normally, The principle of sub-serial repairing is applied to engine cylinder maintenance in automotive industry.
分系列修复的原则一般用于汽车行业中的发动机缸体维修。
Maintenance and service: Screw rod air compressor's maintenance main engine overhaul.
维修和服务：螺杆空气压缩机的维修，主要发动机大修。
It has close relation between maintenance cost and maintenance level of aircraft engine.
航空发动机送修费用与送修等级紧密相关。
There exists close relation between maintenance cost and maintenance level of aircraft engine.
航空发动机送修费用与送修等级紧密相关。
The design for automatic dust removal of engine exhaust is good for maintenance;
发动机排气引射自动除尘，利于保养；
The design for automatic dust removal of engine exhaust is good for maintenance;
发动机排气引射自动除尘，利于保养；
应用推荐