短語詞組短語dual laser beam 雙光束dual -beam technology 雙波束技術(shù)Dual -beam spectrophotometry 雙光束光度法dual ion beam deposition 雙離子束澱積dual ion beam detector 雙離子束探測器dual electron beam oscillograph 釋義雙線示波器;雙線示波器 返回 dual beam