electric tuning

例句：

1. 1. The new radio has a built-in electric tuning system that makes it easy to adjust the volume.
   这款新收音机内置了电调谐系统，使调整音量变得轻而易举。
2. 2. During the manufacturing process, electrical tuning is used to ensure the proper functioning of the device.
   在制造过程中，电气调谐被用来确保设备的正常运行。
3. 3. Electric tuning can be used to improve the performance of an audio system by adjusting the frequency response.
   通过调整频率响应，电气调谐可以改善音频系统的性能。