The method of realizing a creeping control with PLC of the front and rear extensional transmission rollers on medium plate rolling mill at SISG is described in the paper.是什麼意思_The method of realizing a creeping control with PLC of the front and rear extensional transmission rollers on medium plate rolling mill at SISG is described in the paper.在線翻譯_英語_讀音_用法_例句