查询词典 approximate differential

And by the backward stochastic differential equation we get the corresponding partial differential equation of the European option price when those parameters are constants.

并且，借助倒向随机微分方程找到在以上参数均为常数时，期权价格所满足的偏微分方程。

Pathogeny, main clinical manifestations, diagnosis, treatment and differential diagnosis of bacterial liver abscess ; surgical treatment of amebic liver abscess and main differential points between bacterial liver abscess and amebic liver abscess.

细菌性肝脓肿的致病原因，主要临床表现，诊断与治疗，细菌性肝脓肿的鉴别诊断，阿米巴肝脓肿的外科治疗以及细菌性肝脓肿与阿米巴肝脓肿的鉴别要点。

By the import of indirect differential frequences conception, numeric differential frequences method with improves the absolute measurement distance 1 times is present.

通过将间接差频测距概念引入连续光源三维成像系统，提出了数值差频三维测距法，将绝对测距量程提高到原来的3倍。

This article introduces the new principles of digital proctection for generator transformer unit ,including deviation of power frequency percentage differential relay, variable slope percentage differential relay, asynchronous method of TA saturation recognition, current percentage restricted stator inter-turn relay, etc.

介绍了大型发电机变压器组装置的几项保护新原理，包括发电机工频变化量比率差动、变斜率比率差动、异步法TA饱和判别、电流比率制动匝间保护等。

The effect of subsoil kinetic parameters upon the asphalt pavement settlement is studied in order to draw a relation between the dynamic parameters and the accumulative plastic deformation of subsoils. Based on a half-filled and half-dug embankment, a kind of method, which may compute the critical differential settlement making asphalt pavement yielded, is drawn in order to analyze the influence of the asphalt pavement deformation due to the differential subgrade settlements.

研究了路基土不同的动力参数对路基变形的影响，得出路基土动力参数～路基土累积残余变形之间的定量关系；以半挖半填路基为例，提出一种用于分析由于交通荷载反复作用而使路基产生的差异沉降对路面结构影响的方法，通过对路面结构的变形分析提出了临界差异沉降概念。

This paper research on the effect of investment with reserve for insurance price by theory of backward stochastic differential equation.Modeling the investment with backward stochastic differential equation and the resultts got.

本文利用倒向随机微分方程的理论，在考虑保险公司提计准备金的背景下研究投资对于保险价格的影响，建立了再保险投资定价的正倒向微分随机方程的模型，并给出了保险价格的显性解。

Some applied examples show that the differential relationship not only contains fundamental content in geometrical optics, such as the three laws of geometrical optics, imaging formula of single spheric face, but is another form of differential equation of the light ray.

通过应用示例可见，此微分关系式包含了几何光学的3个实验定律和球面镜成像公式等，而且是光线方程的另一种表达形式。

This paper discusses synchronization problems which L90 line differential relay loss packets and the key operation mode and method in line differential with telecommunication system.

论文通过对华北电网 5 0 0kV线路纵联差动保护装置通信故障的分析，提出了故障的解决方案，并着重讨论了复用保护应用中的同步问题。

The separation is based on the differential migration of the micelle and the surrounding water and the differential distribution of the solute between the mi celle and aqueous phase,therefore,the separation mechanism is very similar to th at of micella electrokinetic chromatography.

这种分离方式是基于胶束和水相在色谱过程中的不同迁移以及溶质在胶束和水相间的不同分配而实现的，其分离的机制与胶束电动色谱(mic ellar electrokinetic chromatography，MEKC)十分相似。

Differential On FWD cars, the differential unit is normally part of the transaxle assembly.

差速器 在前轮驱动车辆上，差速器装置是变速驱动桥上常见的装配。

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。