名词
中文翻译：曲轴
同义词：
['crankshaft', 'crankshaft assembly', 'crankshaft journal']
例句：
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1. The car's engine is running smoothly because the crankshaft is well-maintained.
汽车的引擎运行平稳，因为曲轴保养得很好。
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2. The engineer carefully inspected the crankshaft to ensure it was functioning correctly.
工程师仔细检查了曲轴，确保其正常工作。
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3.The crankshaft plays a crucial role in the operation of the car's engine.
曲轴在汽车引擎的操作中起着至关重要的作用。