The PVC insulated and sheathed control cables are used for the controlling,monitoring and protecting circuit system rated voltages up to and including 450/750v.是什么意思_The PVC insulated and sheathed control cables are used for the controlling,monitoring and protecting circuit system rated voltages up to and including 450/750v.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句