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- A method for calculating the first and second order derivatives of eigenpairs of nonsymmetric damped systems is presented. 摘要提出了一种计算非对称阻尼系统特征对一阶、二阶导数的方法。
- Since the computation of the first order derivatives of optical flow is completely avoided, this method is robust to image Eloise. 由于避免了计算光流的一阶微分，该方法具有较好的鲁棒性。
- On the basis of the unconditional variational problem of higher order derivatives, this paper studies conditional variational problem. 在含高阶导数的泛函无约束变分问题基础上,进一步研究条件变分问题。
- Making use of the behavior of the first order derivatives, integral behavioral conditions can be treated in substructural optimum procedures. 对于整体性约束，利用其一阶导数的性质，将其分解到各子 结构，在子结构优化过程中处理。
- The states and inputs of the system were expressed in terms of higher order derivatives of a subset of states by using coordinate and input transformations. 通过坐标和输入变换，系统的状态和输入变量被表示为子状态变量的高阶导数形式；
- We employan approximated linear search procedure based on the Fletcher exact penalty functionand the use of approximated derivetives of the multiplier function that avoids the needto evaluate the second order derivatives of the problem functions . 并利用Fletcher精确罚函数的近似函数作为线性搜索函数，以避免计算二阶导数。
- An existence theorem of solution is established for a class of fourth-ordet two-point boundary value problems with all order derivatives by using integral equation and considering the "height" of nonlinear term. 摘要通过运用积分方程并考察非线性项的“高度”对一类含有各阶导数的四阶两点边值问题建立了一个解的存在定理。
- Linear algebra also plays an important part in analysis, notably, in the description of higher order derivatives in vector analysis and the study oftensor productsand alternating maps. 线性代数也发挥了重要组成部分的分析，值得注意的是，在描述中高阶衍生物在矢量分析和研究的产品和交替张地图。
- From what does the empirically existing stability of human order derive? 经验上存在的人类秩序，其稳定性源自何处?
- I will answer your three questions in order. 我将一个个回答你这三个问题。
- The method uses the finite element time-domainexplicit difference schemes with forth order derivative. 方法中采用了一种考虑四阶导数影响的有限元时域显示差分格式。
- He trudge three hour in the snow to get back home. 他在雪中跋涉三个钟点才回到家。
- Methods To determin dyclonine hydrochloride D-value in transdermal solution by using transdermal test way and first order derivative spectrophotometry. 方法采用一阶导数分光光度法和体外透皮吸收实验方法测定透过液中盐酸达克罗宁的振幅D值。
- Our family reunions are always three ring circus. 我家合家团聚的场面总是热闹非凡。
- The train arrived on the dot of three o'clock. 那辆火车三点钟准时到达。
- Gravity gradient is the second order derivative of gravitational potential, which can be observed by satellite gradiometer. 摘要重力梯度为重力位的二阶导数，可以通过星载梯度仪进行观测。
- Her family lives three li away from her school. 她家住在离学校有三里路的地方。
- We spied three figures in the distance. 我们望见远处有三个人影儿。
- The earthwork was cast up in three hours. 土方工程在三小时内就完成了。
- It's three blocks straight ahead. 一直往前走过三个街区就是。
