Journal of Liaoning Petrochemical University
Portable Elevator Over-Speed Governor Detector
YANG Wen-ying, SHI Cheng-jiang, LI Wei-jun, ZHU Jian，FU Xiao-yang
Journal of Liaoning Petrochemical University . 2010, (3): 48 -50 .  DOI: 10.3696/j.issn.1672-6952.2010.03.013

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