名词
中文翻译：曲柄
同义词：
['crankshaft', 'crankcase', 'crankpin']
例句：
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1. The car's engine is powered by a crankshaft connected to the transmission.
汽车的引擎通过一个连接到变速器的曲柄轴来驱动。
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2. The crankcase protects the engine from damage during operation.
曲柄箱在发动机运行过程中保护其免受损坏。
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3. The crankpins on the gearbox are essential for proper functioning of the vehicle.
齿轮箱上的曲柄销对于车辆的正常运作至关重要。