... fuel air ratio control 燃料空气比调节 fuel equialence ratio 燃料当量比 fuel consumption ratio 燃油消耗率 ...
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Fuel consumption ratio of LPG was lower than petrol, the rate of saving power was about 5%.
燃用LPG比燃用汽油的当量比油耗低，节能率在5 %左右。
With the increasing of EGR ratio, NOX emission decreased more than 90%, at the same time, HC emission and fuel consumption increased, but EGR has little impact on co emission.
随着EGR比率的增加，NOX排放大幅度降低，下降幅度达90%以上，而HC排放和燃油消耗率都随着上升，但排气再循环对CO排放的影响不是很大。
The parameter(engine power electromotor power and ratio of driveline)of powertrain system for HEV have notable influence on dynamical performance economical fuel consumption and emission of vehicle.
HEV驱动系统参数（发动机功率、电动机功率及传动系速比等）对车辆的动力性、燃油经济性和排放性能均有显著影响。
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