| 1. | Wave speed equals frequency times wavelength .
波速等于频率乘以波长。 |
| 2. | He manipulated the frequency dial of the radio .
他开始调拨频率键盘。 |
| 3. | Confined waves have definite frequencies .
被限制的波具有确定的频率。 |
| 4. | Radiation must have exactly the frequency .
辐射必须严格具有频率。 |
| 5. | The resulting frequency varies by a few percent .
最终频率有少许变动。 |
| 6. | The pitch depends on the frequency .
音调的高低是由频率决定的。 |
| 7. | Competition between species is frequency-dependent .
物种之间的竞争是频率制约的。 |
| 8. | The frequency and amplitude of vibration are monitored .
振动的频率与振幅受到监控。 |
| 9. | Frequency modulation does not allow static to creep in .
频率调制不允许静电干扰混入。 |
| 10. | Frequency modulation is not possible with polychromatic light .
多色光不可能调制频率。 |
