coincidence tuning

例句：

1. 1. The engineer made a coincidence tuning to optimize the performance of the machine.
   工程师进行了一次巧合调谐，以优化机器的性能。
2. 2. In the field of radio engineering, coincidence tuning is used to improve signal reception.
   在无线电工程领域，巧合调谐被用来提高信号接收。
3. 3. The scientist discovered a new method for coincidence tuning that could potentially revolutionize the field.
   科学家发现了一种新的巧合调谐方法，这可能会彻底改变该领域的面貌。