固有频率测试
natural frequency measurement
精密频率测试
high precision frequency detection
频率测试台
frequency measuring station
晶体控制次级频率标准测试装置
crystal-controlled secondary standard frequency measuring equipment
频率特性测试
Frequency characteristic measurement
frequency characteristic test
频率特性测试系统
frequency characteristics measurement system
频率特性测试仪
network analyzer
frequency characteristic testing instrument
frequency-characteristic measuring-testing instrument
数字频率特性测试仪
digital frequency characteristic testing instrument
100Hz重复频率试验台
100 Hz rep-rate test stand RRTS
保证率频率
guaranteed rate frequency
保证率频率法
guaranteed rate-frequency method
Guarantee rate-Frequency method
保证率-频率法
Guarantee rate-Frequency method