modulation depth

例句：

1. 1.The modulation depth of the signal is critical for communication quality.
   信号的调制深度对于通信质量至关重要。
2. 2.In radio engineering, modulation depth is a measure of how much energy is transmitted in each frequency band.
   在无线电工程中，调制深度是衡量每个频带传输能量多少的一个指标。
3. 3. The engineers need to carefully adjust the modulation depth to optimize the system performance.
   工程师需要仔细调整调制深度以优化系统性能。