Journal of Liaoning Petrochemical University
Based on the Research about 3D Reconstruction for the  Chemical Pipeline Diagram with Valve and Fittings
Zhang Xiaoming, Zhang Yan, Li Nan
Journal of Liaoning Petrochemical University . 2015, (3): 51 -55 .  DOI: 10.3696/j.issn.1672-6952.2015.03.013