巷道液压支架仿生袋鼠腿智能抗冲击机构
王成龙,刘润升,耿聪杰

Kangaroo leg-like intelligent anti-impact mechanism applied to hydraulic supports of roadways
Chenglong WANG,Runsheng LIU,Congjie GENG
图 5 关于质心运动量的非封闭矢量图
Fig.5 Non-closed vector diagrams of centroid motion quantities