名词
中文翻译：Unknown
同义词：
['speed controller', 'speed regulator', 'speed adjuster']
例句：
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1. The engineer used a speed setter to fine-tune the engine's performance.
工程师使用一个速度设定器来调整发动机的性能。
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2. The car was equipped with a speed setter that could automatically increase the vehicle's speed whenneeded.
这辆车配备了一个速度设定器，可以在需要时自动提高车速。
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3. The driver had to use the speed setter to maintain a safe distance from the other cars on the highway.
驾驶员必须使用速度设定器来保持与高速公路上其他车辆的安全距离。