microwave wavemeter[电磁] 微波波长计
laser wavemeter激光波长计
precision wavemeter精密波长计
absorption wavemeter[光] 吸收式波长计
resonator wavemeter共振器波长计
oscillator wavemeter振荡式波长计
crystal wavemeter石英波长计
wavemeter winch[水运] 波浪仪绞车
transmission wavemeter[通信] 传输波长计
N（名词） an instrument for measuring the frequency or wavelength of radio waves 波长计