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1·The result shows that the effective swinging of left leg is insufficient and extending strength of right leg is not good at the stage of sliding.

结果表明：我国优秀女子铅球运动员在滑步阶段，左腿有效摆动不足， 右腿蹬伸力量、速度不佳。

2·Because the missile does not have establishing or controlling surfaces, it completely relies on the swinging nozzles of its first stage engine to maintain its course of flight.

因为导弹没有稳定或控制翼面，它完全地依靠在第一级发动机的摆动喷嘴去维持它的飞行航线。

3·Swinging mechanical conveyor belt can be moved from the stage of the transportation work.

摇摆输送机械可进行从输送带到工作台的运输工作。