復頻[率]發(fā)電機 frequency generator: 頻率發(fā)生器frequency generator frequency doubler: 頻率發(fā)生器倍頻器multi-purpose display generator: 多功能顯示產生器multi-purpose oxygen generator: 多種生氧器multi-purpose signal generator: 多用信號發(fā)生器下載手機詞典可隨時隨地查詞查翻譯