PVC insulation jacket and control cables used for 450/750V AC voltage and under control, monitoring and protection of the loop line and so on, the wires used to control a crane used to control cables.是什么意思_PVC insulation jacket and control cables used for 450/750V AC voltage and under control, monitoring and protection of the loop line and so on, the wires used to control a crane used to control cables.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句