free-running multivibrator

例句：

1. 1. The deviceis used to generate a high-frequency signal for testing purposes.
   该装置用于产生高频信号进行测试。
2. 2. In the field of electronics, free-running multivibrators are commonly used for generating signals.
   在电子领域，自由运行的多谐振荡器通常用于产生信号。
3. 3.This type of generator is often used in industrial applications where precise timing is required.
   这种类型的发电机常用于工业应用中，需要精确的时间控制。