名词
中文翻译：润滑结构同义词
同义词：
['lubricated structure', 'greased structure']
例句：
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1. The oily film on the engine is a crucial part of the grease structure.
发动机上的油膜是润滑结构的关键部分。
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2. The design of this machine has a grease structure that ensures smooth operation.
这台机器的设计有润滑结构，确保了平滑运行。
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3. The new model car has a more sophisticated grease structure than its predecessor.
新款汽车的润滑结构比前一代更加先进。