正常点火 meaning in English

normal ignition
reliable ignition
trouble-free ignition

Thus, during a normal light-up there is a blade temperature charge of about 30 degrees/sec .
于是，在正常点火时，叶片温度的变化率约为30度秒。
In order to examine the south motorcycle engine preignition phenomenon , using the rich burning information of the massive ions which are produced when the air cylinder is burnt , through analyzing the wave form difference between lighting a fire normally and firing early , it can be determined whether preignition occurs or not
为了检测南方摩托车发动机早燃现象，利用其气缸内燃烧时产生大量的离子电流信号所包含的丰富燃烧信息，对其火花塞正常点火和炽热点火离子电流显示的波形进行研究分析，从而确定是否发生早燃。