短語(yǔ)詞組短語(yǔ)double cup porcelain insulator 雙瓷杯絕緣器;翻譯cup p insulator 杯形絕緣子double e cup insulator 雙杯形絕緣子double cup insulator 雙杯形絕緣子;雙碗式絕緣子insulator cup 杯形絕緣體insulator double cup porcelain 雙瓷杯絕緣器cup -and-pin insulator 盤式絕緣子 返回 cup insulator