名词
中文翻译：曲轴齿轮
同义词：
['crankshaft', "gearbox例句：1. The car's engine is running smoothly with the new crankshaft gear.（新车的发动机运行平稳，得益于新的曲轴齿轮。）"]
例句：
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1. The car's engine is running smoothly with the new crankshaft gear.
新车的发动机运行平稳，得益于新的曲轴齿轮。
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2.The engineer replaced the old gearbox with a more efficient one.
工程师用一个更高效的齿轮箱替换了旧的。
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3.The transmission system uses a combination of gears to control the speed and direction of the vehicle.
传动系统通过一系列齿轮的组合来控制车辆的速度和方向。