Study of the forward slip of the h & beams rolling in the universal beam pass
万能孔型中轧制H型钢前滑问题的探讨
Type EBW - 4C Universal Electron Beam Welding Machine With Computer Control
EBW&4C型微机控制通用电子束焊机的研制
FD-1 universal supersonic molecular beam apparatus
FD-1型多功能超声分子束装置的研制