undermodulation

例句：

1. 1. The undermodulation of the system leads to a decrease in efficiency.
   系统的调制不足导致效率下降。
2. 2. The undermodulation of the signal can cause interference in communication systems.
   信号的调制不足可以在通信系统中引起干扰。
3. 3. In order to improve the performance of the device, we need to adjust the parameters of the undermodulation.
   为了提高设备的性能，我们需要调整参数的调制不足。