First he carefully unscrewed the steering wheel cover, revealing the guts of the ignition system. He tore away frayed wires, stripped them to expose enough metal to cause a spark.

首先，他仔细地拧下方向盘盖，露出里面的点火系统，借着撕开磨损的电线外皮，露出足以点火的金属线芯。

youdao

However, it requires that lasers of high pulse energies are used; just as with spark plugs, a great deal of energy is needed to cause ignition of the fuel.

然而，这就要求使用高脉冲能量的激光器；与火花塞一样，需要大量的能量来引燃燃料。

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On the installation of three yuan catalytic system for engine ignition, lack of energy, will cause serious consequences of low power question.

关于安装三元催化体系的发动机来说，打火能量缺乏、低动力的疑问会致使严峻后果。

youdao

Engineers discovered the problem during fueling, and worried that any excess hydrogen on the launch pad could cause an explosion during engine ignition.

VOA: standard.2009.03.15