upper drive meaning in Chinese
上滑轮传动
Examples
- There are sever kinds of strap mills : horizontal mills - - two roll strap mills and four roll strap mills , and vertical mill with upper drive and bottom drive
带钢轧机有二辊带钢轧机和四辊带钢轧机，都是水平辊轧机，还有上传动立辊轧机和下传动立辊轧机。