Electronic weir should equipped with protection and linkers must be professional. Flexible cord is only allowed in bulb holder .Wires cross ground should be protected by ditch and bridge.是什么意思_Electronic weir should equipped with protection and linkers must be professional. Flexible cord is only allowed in bulb holder .Wires cross ground should be protected by ditch and bridge.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句