微分

Therefore, accurate experimental data, such as cross sections,differential cross sections and double differential cross sections, are very important inapplications, at the same time they can be used to test and improve nuclear model andhelp us to understand nuclear reaction mechanism better.

因此，对反应的反应截面、微分截面和双微分截面进行准确地测量，既可为实际应用提供可靠的数据，同时又可检验和改进现有的模型理论，有助于进一步了解核反应机制。

The left ventricular meets the optimal efficiency principle at systolic state,we utilize the differ-ential geometry and differentiable dynamics to analyse the model and inverts it to the linear space for optimal control theory solution of optimal efficiency of ejective blood-flow which meets the physiology of optimal efficiency.

结果 在左心室的收缩最优效率原则时候，可应用微分几何与微分动力学数学分析法，将模型转换为线性空间下最优控制理论求得射血流量。

Basic Elementary Functions Represented by differential formula.

基本初等函数的微分公式与微分运算法则。

The construction procedures used to establish the theory are based on orthogonal and elementary matrix transformations and can, therefore, be developed to a numerically efficient algorithm.

第一部分，我们想利用状态和微分回馈控制把一个时变周期离散的系统正则化，在这部分我们找到一个可以正则化的充分条件，并利用构造方法证明在这充分条件之下可以构造出状态和微分回馈控制矩阵，使的这周期闭回路系统可以被正则化。

The book is structured so that the reader may choose parts of the text to read and still take away a completed picture of some area of differential geometry Beginning at the introductory level with curves in Euclidean space, the sections become more challenging, arriving finally at the advanced topics which form the greatest part of the book:transformation groups, the geometry of differential equations,geometric structures, the equivalence problem the geometry of elliptic operators, G-structures and contact geometry.

这本书是结构，以便读者可以选择部分文本阅读，还带了一个完整的画面，有些地区的微分几何开始入门级和曲线的部分，在欧氏空间变得更有挑战性，终于到达了高级的主题，形成了最大的一部分书：变换团体、几何的微分方程、几何结构、等价问题的几何形状，G-structures椭圆算子和接触几何。

First, theoretical analysis methods were used for the static analysis of the suspension bridge. The formulas for endogen force of the asymmetry suspension bridge through elastic theory were deduced and they were contrasted with those of the normal suspension bridge. The basic differential equation of deflection theory was deduced and the method of getting the roots of the equation was offered, and some simplified methods for deflection theory were presented.

推导了非对称式悬索桥弹性理论的内力计算公式，并对比了其与对称式悬索桥弹性理论的内力计算公式的异同；推导了非对称式悬索桥挠度理论的基本微分方程，并且给出了部分均布荷载作用下基本微分方程的试算方法；提出了挠度理论的几种简化计算方法。

Based on the thermodynamic analysis of heat transfer process between water jet and the blade surface, the differential equations of heat convection and differential equation of steady heat conduction between water jet and the blade surface are established. Power expression of heat exchange and temperature field expression of the blade are derived.

根据对水射流与刀片间传热过程的热力学分析分别建立了水射流与刀片表面对流换热微分方程组和热源与刀片间的稳态导热微分方程，推导出水射流对刀片的换热功率表达式和刀片内温度场表达式。

In Chapter 4, we introduce the definition of implicit complementarity problems and struct an equivalent projection differential equation system. And then we prove the equilibrium point of system is exact the solution of the implicit complementarity problem.

本文的第4章介绍了有关隐式互补问题的相关知识，并且利用投影算子建立了与之等价的微分方程系统，这个微分方程系统的平衡点就是隐互补问题的解。

In the text, differential coefficient method and numerical value differential coefficient method have been introduced for crank slide block machine accuracy analysis, and influence of the fitting clearance of moving pair to component moving error has been given.

文章介绍了微分法及数值微分法曲柄滑块机构精度分析，说明了运动副的配合间隙对构件运动误差的影响。

In the PFD, both the differentials and non-differential terms in the differential equation are discretized, and the coefficients of the power series are determined by means of eliminating the truncation error of the corresponding modified scheme, then the high accurate difference scheme is obtained.

摄动有限差分方法在微分方程的差分近似中，离散微商项的同时，也离散非微商项，把非微商项摄动展开成网格步长△x的幂级数，并通过提高差分格式相应修正微分方程误差阶的方法求出摄动幂级数系数，从而获得高精度差分格式。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。