The Breaker can be attached with shunt tripping device, undervoltage tripping device, auxiliary contacts ,alarm contacts and motor-operated drive.是什么意思_The Breaker can be attached with shunt tripping device, undervoltage tripping device, auxiliary contacts ,alarm contacts and motor-operated drive.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句