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。
2
The electronic control unit allows current to flow through the ignition coil primary winding until it senses a triggering voltage pulse from the speed sensor, or pickup coil.
电子控制单元使电流通过初级绕组直到感知到一个从转速传感器或拾波线圈产生的触发电压脉冲。
3
The optimum operation of pulse combustor means successful ignition and stable combustion with high intensity, low excess air and low co emission.