| 1. | They are very compact in time and the frequency bands of interest are narrow .
它们在时间上是非常紧致的同时有意义频带是狭的。 |
| 2. | Another attribute is the flux or radiant power that can be delivered in that narrow frequency band .
另一个性质就是在这样窄的频带内可以给出很高的光通量或辐射功率。 |
| 3. | The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band .
声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。 |
| 4. | This effect is obvious at lower frequency band
这种效应在振动低频区段更为显著。 |
| 5. | Standard vibrator in middle frequency band comparison method
中频标准振动台 |
| 6. | Letter designations for radar - frequency bands
雷达频带的字母标志 |
| 7. | Letter designations for radar - frequency bands
雷达频带的字母标志 |
| 8. | Design of broadband shipboard whip - type antenna at high frequency band
舰用短波宽带鞭状天线研究 |
| 9. | Frequency band energy leakage and countermeasures in wavelet analysis
小波分析中频带能量泄漏及对策 |
| 10. | Amateur frequency band
无线电业余波段 |
