名词
中文翻译：真空减速机制
同义词：
['vacuum brake', 'vacuum clutch', 'vacuum governor']
例句：
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1. The vacuum retarding mechanism is crucial for maintaining the stability of the vehicle's engine.
真空减速机制对于保持车辆发动机的稳定性至关重要。
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2.In this model, the vacuum retarding mechanism plays a significant role in reducing fuel consumption.
在这个模型中，真空减速机制在减少燃料消耗方面起着重要作用。
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3.The engineers designed a new vacuum retarding mechanism to improve the efficiency of the car's powertrain system.
工程师们设计了一种新的真空减速机制，以提高汽车动力传动系统的效率。