Journal of Liaoning Petrochemical University
The Design of Parametric Library of Bolt Connecting Piece Based on AutoCAD Graph Block
Lan Xiaomin, Wang Quan, Wang Shengzhi
Journal of Liaoning Petrochemical University . 2018, (1): 60 -65 .  DOI: 10.3969/j.issn.1672-6952.2018.01.011

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