變波導(dǎo)衰減器 rotary waveguide variable attenuator: 旋轉(zhuǎn)波導(dǎo)可變衰減器waveguide attenuator: 波導(dǎo)衰減器variable attenuator: 可變衰減器fixed waveguide attenuator: 固定波導(dǎo)衰減器waveguide below-cutoff attenuator: 波導(dǎo)截止式衰減器下載手機(jī)詞典可隨時隨地查詞查翻譯