The damping derivatives can only be determined experimentally in the wind tunnel or ballistic range . 阻尼导数只能用风洞或弹道试验来确定。
The decreasing character of a function with negative derivative can be proved by an analogous argument . 负导数函数具有递减性的证明完全类似。
These formulas make the approximations for the derivatives at these points in a nonsymmetrical manner . 这些公式使得这些点子上的导数近似式是非对称形式。
The difference between an ordinary and a partial derivative was at first not explicitly recognized . 通常的导数与偏导数的区别在一开始并未被人们明确地认识。
Real per capita investment spending on plant and equipment also exhibits a positive regression coefficient . 实际平均厂房与设备支出也具有一个正的回归导数。
Too high a degree polynomial produces lower residuals, but at the expense of smoothness in the derivative . 一个很高次数的多项式会产生较低的残差，但却要破坏导数的光滑性。
In order to design the autopilot for a rear controlled missile we must make a first estimate of the required aerodynamic derivatives . 为了设计尾部控制导弹的自动驾驶仪，我们必须首先估算一下所需要的气动力导数。
In general, experience has shown that third-to fifth-degree polynomials produce sufficiently low residuals and monotonically increasing derivatives . 实践证明，三至五次多项式就能产生足够小的残差和单调递增的导数。
It is a remarkable feature of the theory of mechanics that all motion can be described without reference to derivatives higher than the second . 力学理论有一个显著的特点，它可以描述所有的运动而不需涉及二阶以上的导数。
