The key problem in the designing of this structure is the ultimate bearing capacity of the directly welded joints(also called simplejoints).
直接焊接管结构设计的关键问题是直接焊接节点，即相贯节点的极限承载力计算。
2
Simple answers such as "It is the balancing practice for your Yang style of yoga" or "It is yoga for the joints, not the muscles" are not overly satisfying.
至于像“它是对阳瑜伽的平衡练习”，或者“它是针对关节，不是针对肌肉”这类简单回答是不能让人满意的。
3
This video surveys the human body highlighting: Muscular and skeletal systems, simple and complex muscle groups, crucial joints and body mechanisms, visible landmarks, proportions.