The third medal came during the 2000 Sydney Olympics from Vala Flosadottir who won a Bronze medal in Pole Vaulting clearing the height of 4.50m, which was a national record.
Research in this paper is about the alternative rule of the axial force of supporting pole with different support height during the period of casting concrete through field detection.
本文通过现场检测实验，研究了不同高度支撑架内力随混凝土浇筑过程的变化规律。
3
The increasing of takeoff velocity and rational decreasing of takeoff Angle are able to help bend the pole, grip height on the pole and swing velocity.