采用M90甲醇燃料和PTC加热器来改善甲醇发动机冷起动性能；
The M90 fuel and PTC heater are used to improve the cold starting performance.
由于较低的充气效率，发动机使用LPG燃料成功起动时的初始节气门开度及能够稳定在怠速转速下的节气门开度比使用汽油燃料的大。
Because of the lower volumetric efficiency, the initial throttle openings for the start and idling of the LPG engine are larger than those of the gasoline engine.
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