名词
中文翻译：减速器
同义词：
['reducer', "governor例句：1. The car's engine has a decelerator that can be adjusted to slow down the vehicle.（这辆车的引擎有一个可以调整来减缓车辆速度的减速器。）"]
例句：
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1. The car's engine has a decelerator that can be adjusted to slow down the vehicle.
这辆车的引擎有一个可以调整来减缓车辆速度的减速器。
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2. The engineer used a decelerator to reduce the vibrations in the machine.
工程师使用了一个减速器来减少机器中的振动。
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3. The decelerator was responsible for controlling the speed of the conveyor belt.
减速器负责控制输送带的速度。