体育学刊 关 键 词：运动生物力学；脚背正面射门；不同高度；射门；球速；支撑腿 [gap=2721]nics；goal shooting with instep front；different heights；goal shooting；ball speed；supporting leg
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Roof Supporting Leg 浮顶负载支架
water-powered rockdrill with supporting leg 支腿式水压凿岩机
supporting left leg 左腿支撑
Bend the right knee and place the sole into the inside of the supporting leg.
屈右膝，脚掌抵在支撑腿内侧。
Because of the special structure of hip point, the hip can make 3-axis movement around supporting leg.
由于骸关节的特殊生理结构决定其可以绕支撑腿一侧支点做三轴运动。
For supporting leg with varying cross section, it is necessary to calculate equivalent inertia moment prior to calculating internal force of plane frames.
对于变截面支腿，用力法计算平面框架内力时要先计算折算惯性矩。
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