1.Gravity gradient is the second order derivative of gravitational potential, which can be observed by satellite gradiometer.
摘要力梯度为力位二阶导数,可以通过星载梯度仪进行观测。
2.In this chapter, we partially solve the problem of inner radius of univalence for some parallelogram, applying the properties of extremal sets of Schwarz derivatives.
在这章我们利用Schwarz 导数极值要性质部分解决了几类平行四边单叶性内径。
3.The large deflection problem of cantilever beams was studied by means of the biparametric perturbation method and the first order derivative substitution from pseudolinear analysis approach.