频率基准 meaning in Chinese
frequency primary standard
Examples
- External frequency reference option 001
外部频率基准选件001 - External frequency reference option 001
外部频率基准选件001 - Time and frequency standards
时间和频率基准 - Internal frequency reference
内部频率基准 - Design amp; amp; preliminary results of nim cesium fountain primary frequency standard
铯原子喷泉频率基准的设计与初步结果