ionization by collision

例句：

1. 1. The process of ionization is essential for the operation of modern electronic devices.
   电离过程对于现代电子设备的运行至关重要。
2. 2. During the ionization process, electrons are stripped from atoms and become free particles in the gas phase.
   在电离过程中，电子从原子中被剥离并成为气体相中的自由粒子。
3. 3. Ionization by collision is a common method used to study the properties of matter at high temperatures and pressures.
   碰撞电离是一种常用的方法，用于研究高温和高压下物质的性质。