最低燃料消耗率 meaning in English

best economy rating

Best economy rating
最低燃料消耗率
The injection pressure of e30 engine corresponding to the lowest fuel consumption is higher than that of diesel engine
E30的最低燃料消耗率对应的喷嘴启喷压力略高于柴油。
The results indicate that the fuel delivery advance angle corresponding to the lowest fuel consumption of diesel engine is as similar as that of e30 engine . with the increase of fuel delivery advance angle , nox emission enlarges and smoke reduces
结果表明： e30混合燃料发动机的最低燃料消耗率对应的供油提前角与原柴油机相当，随供油提前角增大， e30的no _ x排放增加，但烟度降低。