合理的点火提前角也有利于稀限拓宽；
The suitable ignition advance angle is conducive to broadening lean burn limit.
研制了点火提前角实验系统和点火提前角控制器。
The experimental system and controller of ignition advanced Angle are developed.
本文介绍了磁电机点火系统的点火提前角测量原理。
The survey principle of a magneto ignition system ignition advance Angle was introduced.
通常还有一个真空装置，用于检查真空点火提前装置的工作情况。
In addition, they usually have a vacuum device to test the operation of vacuum-advance mechanisms.
通常还有一个真空装置，用于检查真空点火提前装置的工作情况。
In addition, they usually have a vacuum device to test the operation of vacuum-advance mechanisms.
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