| 1. | There must be a threshold of thermal noise .
必有一个热噪声的门限值。 |
| 2. | Ambient noise may come from any direction .
外界噪声可以来自任意方向。 |
| 3. | The noise stopped, and then began again .
噪声停止了，但不久又开始了。 |
| 4. | Our second concern is with shot noise .
第二个要讨论的是散粒噪声。 |
| 5. | The noise of the car died away in the distance .
汽车的噪声消失在远方。 |
| 6. | The noise of the aeroplane deafened us .
飞机的噪声使我们耳朵听不见了。 |
| 7. | Receivers must be as noise-free as possible .
接收机必须尽量做到无噪声。 |
| 8. | W is a zero mean white noise source .
W是一个零均值的白噪声源。 |
| 9. | Noise immunity is the maximum amplitude of noise .
抗扰度是最大的噪声幅值。 |
| 10. | Our fifth concern is with modulation noise .
我们要讨论的第五个问题是调制噪声。 |
