The utilization of C120 PLC for control of the welded tube production line is very helpful to enhancing the productivity and safety of the line.是什么意思_The utilization of C120 PLC for control of the welded tube production line is very helpful to enhancing the productivity and safety of the line.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句