rubidium frequency standard
~(87)Rb atomic frequency standard
atomic frequency standard
hydrogen maser frequency standard
primary frequency standard
quantum frequency standard
standard standard of vo|
rubidium cobaltous sulfate; rubidium cobalt(II) sulfate
rubidium hydrocarbonate; rubidium hydrogen carbonate
rubidium magnesium peroxy-tantalate; rubidium magnesiumper-tantalate
Atomic Trapping-Flame Atomic Spectrometry
audio frequency and video frequency processing
correlation in frequency domain and frequency domain
High frequency and low frequency
Low Frequency and Acoustic Frequency