晶體管高頻信號發(fā)聲器hf: Hf = 【化學(xué)】 hafnium. signal generator: 發(fā)(信)號機(jī)。 tra istorized pulse generator: 晶體管脈沖發(fā)生器hf signal generator: 高頻信號發(fā)生器hf transistorized signal generator: 晶體管高頻信號發(fā)聲器; 晶體管高頻信號發(fā)生器下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯