Even though race courses are measured accurately, many racers run a longer distance (and therefore a slower finish time) by following every curve in the road.
尽管跑步的课程都是精确的测量，许多选手跑的曲线都是较长的路程(因此以一个较慢的时间完成)。
2
By using the method of curve fitting to calculate the traction tonnage, we can gain the traction tonnage within short time and short distance after the locomotive start.
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.