spark-discharge forming

例句：

1. 1. The spark-discharge forming process is crucial for the operation of the device.
   火花放电形成过程对于该设备的运行至关重要。
2. 2. During the spark-discharge forming stage, the voltage across the gap is high and the current islow.
   在火花放电形成阶段，间隙两端的电压很高而电流很低。
3. 3. The spark-discharge forming mechanism is a complex process that involves multiple factors.
   火花放电形成机制是一个复杂的过程，涉及多个因素。