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从力学角度和能量转换角度探讨高质量完成向后大回环的技术原理．根据回环过程的动力学方程，分析了人体具有较大角速度的动作技术原理，并进一步从能量转化关系中，论证了人体完成回环动作所需的能量来源是与正确的动作技术紧密相联的．探讨高质量完成此动作的技术原理，以求在教学和训练的实践中起指导作用．
From the mechanical point of view and energy conversion point of view to explore high-quality technology to complete the back-loop principle. According to the kinetic equation of the loop-back process, the principle of motion technology of the human body with larger angular velocity is analyzed, and further from the energy conversion relationship, it is demonstrated that the energy source required for the human body to complete the loop-back motion is closely linked with the correct motion technology. To explore the technical principle of high quality to complete this action, in order to guide the practice of teaching and training.