Secondly, Chinese athletes comply with walking race definition in that the knee joint is unwound from touchdown to upright phases.
我国优秀竞走运动员着地瞬时至垂直瞬时膝关节是伸直的，符合竞走的定义；
Secondly, Chinese athletes comply with walking race definition in that the knee joint is unwound from touchdown to upright phases.
我国优秀竞走运动员着地瞬时至垂直瞬时膝关节是伸直的，符合竞走的定义；
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