名词
中文翻译：引擎单元
同义词：
['engine component', 'engine part例句：1. The engineer unit is responsible for monitoring the performance of the entire system.（工程师单元负责监控整个系统的运行性能。）']
例句：
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1. The engineer unit is responsible for monitoring the performance of the entire system.
工程师单元负责监控整个系统的运行性能。
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2.The new engine unit has been designed to improve fuel efficiency.
新设计的发动机单元旨在提高燃油效率。
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3. The engine unit was replaced after it failed during testing.
在测试中，发动机单元出现故障后被更换。