| 1. | Frequency characteristic of second - order tracking - differentiator 微分器的频率特性 |
| 2. | Baseband frequency characteristics evaluation equipment 基频传输特性检测器 |
| 3. | Study of the high frequency characteristics of ridge - loaded ring - plane twt 脊加载环板行波管高频特性的研究 |
| 4. | Development of portable instrument for amplitude - frequency characteristic 便携式低频幅频特性测试仪的研制 |
| 5. | Log magnitude - frequency characteristics 对数幅频特性 |
| 6. | Correction of frequency characteristic 频率特性校正 |
| 7. | Attenuation frequency characteristic 衰减频率特性 |
| 8. | Frequency characteristics and analysis of quantum resonant tunneling diodes 量子共振隧穿二极管的频率特性与分析 |
| 9. | Log phase - frequency characteristics 对数相频特性 |
| 10. | Crosstalk - frequency characteristics 串音频率特性 |