cup insulator是什么意思

网络释义

1)cup insulator,杯形绝缘体2)cup insulator,杯形绝缘子3)double cup insulator,双杯形绝缘子4)core insulator,绝缘杯5)double cup insulator,双豌式绝缘子，双杯形绝缘子6)cup insulator,杯式绝缘子