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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The volunteers will work alongside police officers in areas up to a 40mph limit, to operate roadside checks using a Simple Speed Indicator Device and road signage to identify vehicles which exceed the limit.

BBC: Community Safety volunteer