Vertical Takeoff Phase 垂直飞行段
The paper made a study on the function of lifted leg's action, the features of sports biology and the effect caused in the takeoff phase of long jump.
就有关跳远起跳阶段摆动腿的摆动动作功能，运动生物学特征，及其产生的作用进行初步的探讨。
A large amount of practical measurement and calculated drift data of rocket shows that the models are suitable for describing and analyzing drift of rocket in takeoff phase.
大量实测数据计算结果证实，该箭体漂移的运动学模型是可靠的，很好地刻画了火箭在垂直起飞段漂移量的变化规律。
Using high Speed camera and film analyser, we got the technical data of elite broad jumper Chen Zunrong's last phase of runup and takeoff.
采用高速摄影机现场拍摄及影片解析，获得了优秀运动员陈尊荣助跑最后阶段及起跳时的技术资料；
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