Minimum 3 Years Engine Overhaul experience.
3年以上发动机大修经验。
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。
The engine is due for an overhaul .
那台发动机该大修了。
The engine is due for an overhaul.
这台发动机需要检修。
The engine is due for an overhaul.
这台发动机需要检修。
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