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1. The speed adjusting rheostatis used to control the engine'sspeed.
调速器用于控制发动机的速度。
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2. The engineeradjusted the speed adjusting rheostatto increase efficiency.
工程师调整了调速器以提高效率。
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3. The car's speed adjustingrheostat was damaged during the accident.
汽车的调速器在事故中受损。