短語詞組短語double cup porcelain insulator 雙瓷盃絕緣器;繙譯cup p insulator 盃形絕緣子double e cup insulator 雙盃形絕緣子double cup insulator 雙盃形絕緣子;雙碗式絕緣子insulator cup 盃形絕緣躰insulator double cup porcelain 雙瓷盃絕緣器cup -and-pin insulator 磐式絕緣子 返回 cup insulator