名词
中文翻译：重油发动机
同义词：
['heavy oil engine', 'heavy crude oil engine']
例句：
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1. Theheavy and crude oil engine is the backbone of our factory's production line.
重油和原油发动机是我们工厂生产线的核心。
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2.The heavy and crude oil engine requires regular maintenance to ensure its efficiency.
重油和原油发动机需要定期维护以确保其效率。
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3.The heavy and crude oil engine is a complex piece of machinery that requires skilled operators to operate safely.
重油和原油发动机是一种复杂的机械设备，需要熟练的操作员安全操作。