| 1. | Quality classifing standard for frequency counter
频率计数器质量分等标准 |
| 2. | General specification for microwave frequency counter
微波频率计通用规范 |
| 3. | 53181a rf frequency counter , 10 digit sec
53181a rf计频器，每秒10位数 |
| 4. | General specification for frequency counters
频率计数器通用技术条件 |
| 5. | Generic specification for frequency counters
频率计数器通用技术条件 |
| 6. | Measuring methods for frequency counters
频率计数器测试方法 |
| 7. | Product comparison - frequency counters and time interval counters
产品比较频率计数器时间间隔计数器 |
| 8. | Impedance meter frequency counter
阻抗计频率计数器 |
| 9. | Digital frequency counter
智慧型数字频率计数器 |
| 10. | Precision improvement of digital frequency counter with match strobe signal
用选通门匹配方法提高计数式频率计的测量精度 |
