The emission limits should include the upper limit for emission concentration, the limit of unit product emission at exhaust funnels and the upper concentration limit for unorganized emission.
排放限值包括排气筒最高允许排放浓度，排气筒单位产品排放量和无组织排放最高允许排放浓度。
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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