fantom antenna phantom antenna
phantom antenna fantom antenna
three-antenna (polarization) method antenna measurement
three-antenna method antenna measurement
two-antenna (gain) method antenna measurement
constant volts per hertz
electrostatic hertz wave
franck hertz experiment
franck hertz’s experiment
Franck-Hertz experiment
实验误差
夫兰克－赫兹实验
弗兰克－赫兹实验
F-H实验
法兰克-赫兹试验
夫然克-赫兹实验
Franck-Hertz instrument
Frank-Hertz experiment
Frank-Herz实验
夫兰克－赫兹实验
F-H实验