“Two feet to make rotation” Online Video Trailer

by Shopmaster on 2015/11/07

Short talk on the theory of how to use the two feet to make a rotation. This relationships causes ‘turning over of the joint’
Presenter: Chen Zhonghua   Length: 2 min.   In: English   Year: 2014  Difficulty:1/5  At:Daqingshan

Two feet to make rotation
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