而力学原理是掌握和改进运动技术，加快提高运动成绩的重要依据。
The principles of mechanics is the important basis to master and improve sports skills and speed up the improvement of athletic performances.
认为对运动员代言广告进行帕累托改进，应该从减少广告活动的技术约束和制度约束人手。
It suggested that reduce technical constraints and institutional constraints of business activities to reach Pareto improvement in athletes advertisement endorsed.
建议进一步提高运动员技术水平，改进训练方向，提出有效的训练方法。
So the paper offers some Suggestions for making further improvement of the technical level of athletes and the training directions, introducing effective methods of training.
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