This engine resembled present single-acting gas and oil engines.
这台发动机类似目前的单作用煤气和重油发动机。
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。
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。
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