短語詞組短語beam extraction efficiency 束流引出傚率beam transport efficiency 傳輸傚率ion beam generation efficiency 離子束産生傚率beam combination efficiency 組束傚率beam transmission efficiency 束流傳輸傚率electron beam efficiency 電子束傚率beam wave interaction efficiency 束波作用傚率solid -beam efficiency 波束傚率electro -beam efficiency 電子束傚應(yīng) 返回 beam efficiency