英语翻译
问题描述：
英语翻译
where the subscripts k and k+1 indicate the current and next sampling times.Eq.(3) describes the relationship between the parameter u and the sampling time T.However,two terms u；k and uk must be expressed more explicitly.The constant feedrate V along the curve is defined as the derivative of the constant distance c with respect to time t.
答
其中下标钾和钾+ 1显示当前和下一个采样时间.方程（3）描述之间的关系参数和采样时间.然而,从你；和你必须作出更明确的.恒定进给速度的沿曲线的定义是导数的常数距离与时间t.