名词
中文翻译：曲柄销
同义词：
['crank pin', 'crank pins']
例句：
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1.The car's engine is running smoothly because the crankpins are in good condition.
汽车发动机运行顺畅，因为曲柄销状况良好。
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2. The mechanic replaced the worn-out crankpins with new ones.
机械师用新的曲柄销替换了磨损的部件。
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3. The car was difficult to start initially due to a damaged crankpin.
起初，这辆车很难启动，是因为一个损坏的曲柄销。