字典網>> 英漢字典>> D開頭詞條>>direct-coupled amplifier的意思 漢英字典direct-coupled amplifier中文翻譯：【電】 直耦放大器字典網英文字典相關詞條：directional filter directive statement directed tree matrix direct ink-writer direct embolism direct production direct material cost percentage rate direct control connection direct-current ammeter directed beam scan