名词
中文翻译：双速齿轮头箱
同义词：
['Double gear', 'Double gear box', 'Double gear head']
例句：
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1.The car has a double gear head stockthat allows for easy shifting between low andhigh gears.
这辆车有一个双速齿轮头箱，可以轻松地在低速和高速之间切换。
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2. The engineer used the doublegear head stock to quickly change the vehicle's gears.
工程师使用双速齿轮头箱快速更换车辆的档位。
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3.The double gear head stock is essential forefficient transportation in heavy traffic areas.
双速齿轮头箱对于在交通繁忙地区高效运输至关重要。