常見例句雙語例句Results show that the lower guide mode acting as the modulation channel is, the larger modulation index can be obtained.結(jié)果表明，作為調(diào)制通道的導(dǎo)模階數(shù)越低，調(diào)制效率越高。Under the same amplitude modulation index and same frequency modulation index, different SVM waveforms can be derived from different sampling point distributions.相同頻率調(diào)制比和幅度調(diào)制比的情況下，對調(diào)制波信號的不同采樣點分布可以得到不同的SVM波形。Under a certain deliver distance and the light power, the different sub-carries number to exist a best optical modulation index, making the system's carrier-to-noise ratio biggest.一定的傳輸距離和發(fā)射光功率情況下，不同的子載波數(shù)存在一個最佳的光調(diào)制指數(shù)，使得系統(tǒng)載噪比最大； 返回 modulation index