We put forward the best index range and speeddistancecurve, thus providing some references and advises in sprint training and teaching.
并提出了最佳的指数范围和速度距离曲线，从而为短跑教学与训练提供参考。
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The system can simulate the executive process of nc programme files, and realize the simulation of speed and acceleration curve, and process time and distance with the unit of controlling period.
Appropriate pitch curve designing is a key of regularly working for non-circular planetary gear mechanism with variable center distance which can be used in low speed high torque hydraulic motor.