speed limit device
限速装置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It is concluded that in the running-in periods using limit screw as the speed-limiting device is better than governor plate for improving the fuel consumption and exhaust emission of the engines.
试验结果表明，在汽车走合期采用限位螺钉限速装置时，对改善发动机的油耗、排污量都比限速片装置优越。
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