Q-switching

例句：

1. 1.The Q-switching laser can be used for precise cutting and polishing.
   Q开关激光可以用于精确切割和抛光。
2. 2.In the Q-switching process, the energy is released in a short burst.
   在Q开关过程中，能量以短脉冲释放。
3. 3.The Q-switching technique has been widely applied in various fields of technology.
   Q开关技术已被广泛应用于各个领域的技术中。