Journal of Liaoning Petrochemical University
The Study of Space More Freedom Position Control System Based on S7300 PLC
Guo Weijian, Li Weijun, Shi Chengjiang
Journal of Liaoning Petrochemical University . 2015, (6): 53 -56 .  DOI: 10.3696/j.issn.1672-6952.2015.06.013