次諧波衰減 harmonic attenuation: 削諧third harmonic: 第三次諧波; 三次諧波harmonic distortion attenuation: 諧波失真衰減third harmonic generation: 第三諧波發(fā)生; 三次諧波振蕩third harmonic tuning: 三次調(diào)諧下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯