| 1. | Design of a high precision frequency meter based on scm 基于单片机的高精度频率计设计 |
| 2. | Verification regulation of heterodyne frequency meter 外差式频率计检定规程 |
| 3. | Verification regulation of model pb - 2 decimal frequency meter Pb - 2型十进频率仪检定规程 |
| 4. | 09999 voltmeter , ammeter , power meter , frequency meter 09999电压表电流表功率表频率表 |
| 5. | Name : dlf current meter name : dfd frequency meter 名称: dfd频率表 |
| 6. | Design of equal precision frequency meter based on microcontroller 基于单片机的等精度频率计设计 |
| 7. | Verification regulation of digit industrial frequency meter model pp27 Pp27数字工频频率计试行检定规程 |
| 8. | Tuned circuit type frequency meter 共振频率计 |
| 9. | Design and achievement of multichannel frequency meter based on virtual instrument 多通道虚拟频率测量仪的设计与实现 |
| 10. | Frequency meter used indicator 指针式频率表 |