| 1. | These two modulations are quite distinct .
这两个调幅性质十分不同。 |
| 2. | Our fifth concern is with modulation noise .
我们要讨论的第五个问题是调制噪声。 |
| 3. | Frequency modulation does not allow static to creep in .
频率调制不允许静电干扰混入。 |
| 4. | Frequency modulation is not possible with polychromatic light .
多色光不可能调制频率。 |
| 5. | The soft modulation of her voice soothed the infant .
她声调柔和的抑扬使婴儿安静下来。 |
| 6. | The nodal modulation is a very significant feature of the tides .
交点调节是一个非常重要的潮汐特征。 |
| 7. | It was the voice of a born orator, rich in possible modulations .
这是一个天生演说家的富于抑扬顿挫的声音。 |
| 8. | Position control of d. c. motors has been done by means of pulse width modulation .
直流电机位置用脉冲宽度调制法控制。 |
| 9. | Mode locking can be induced not only by loss modulation, but also by phase modulation .
锁模不仅可用损耗调制取得，也可用位相调制来得到。 |
| 10. | Evidently, there is another motion to be concerned with and that is the propagation of the modulation envelope .
显然，还应当考虑另外一种运动，那就是调制包络的传播。 |
