查询词典 backward difference operator

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。

Through the technological calculation of the wind wheel and the analysis of the exerted force, stress and metal flowing status when drawing forward and backward, the forward and backward compound drawing die was designed and improved in its structure, which ensured the requirement of the part dimensions and eliminated some defects such as the material thickness becoming thinner.

通过对风轮本体的工艺计算及正反拉伸复合时的受力、应力及金属流动状态进行分析，设计并改进了正反拉伸复合模的结构，保证了零件尺寸要求，消除了料厚变薄等缺

However, the production situation in backward and backward class status easily lead to premature political action.

然而落后的生产状况和落后的阶级状况容易导致不成熟的政治行动。

However, development of cement industry will also face disadvantageous factors: 1 along with the coming of high cost epoch, continued rising in costs of coal, power, mineral resources, environment, human resource and capitals and the increase in social responsibilities that enterprises should take on will bring restricting factors to the investment and development of cement industry; 2 on the basis of the gradual increase of industrial concentration, market competition will change from the current competition between large enterprises and small enterprises and between new dry process and backward shaft kiln technology to the competition among large enterprises and among new dry processes, so the extent of market competition may further extend; 3 along with RMB increasing in value, demand decreasing in north America, new production lines in Middle east being put into operation and the persistent high price of international shipping, national cement export will face huge menace; backward flow of export products will certainly aggravate market competition in some areas.

但水泥行业的发展也将面临不利因素。一是随着高成本时代的到来，煤炭、电力、矿产资源、环境、人力、资金等成本的不断提高及企业所承担的社会责任的增加，将对水泥工业的投资和发展平添抑制因素；二是在产业集中度逐步提高的基础上，市场的竞争将由目前大企业与小企业、新型干法与落后立窑工艺之间的竞争转为大企业与大企业、新型干法与新型干法之间的竞争，市场竞争的程度有进一步加大的可能；三是随着人民币的升值、北美市场需求的下降、中东新生产线的投产及国际航运价格的居高不下，我国水泥出口将面临巨大的威胁，出口产品的回流，势必将加剧局部地区的市场竞争。

Difference from other algebraic structures which are introduced for some logic system, Implication Algebra is a abstraction of one logic connective, i. e. implicative operator, and other operators in it are all introduced by implicative operator.

特别值得提出的是，与其它为研究逻辑系统而引入的代数结构不同，蕴涵代数是对一个逻辑联结词，即蕴涵算子抽象而得到的，其它算子均是由蕴涵算子诱导而得到。

Also we use the time-dependent SU (2) gauge transformation to diagonalize the Hamilton operator, obtain the berry phase and analytically the time-evolution operator. The particle number difference of species A between the two wells is studied analytically.

此外我们还研究了在双阱玻色-爱因斯坦凝聚中纠缠态的演化，研究发现随着组分间相互作用和随穿率的比值的增加系统演化到Bell态的概率变大，而且组分自身内在的相互作用对形成Bell态的几率没有影响；并且用含时Su（2）规范变换对角化哈密顿量得到了系统的Berry位相和时间演化算符，并研究了量子随穿过程。

This is a major difference between Boolean sum operator and Tensor product operator.

这是实际设计部门乐意接受的，也是张量积方法所不具备的。1

The biggest difference between the as operator and the cast operator is how user-defined conversions are treated.

使用as操作符和使用强制类型转换最大的区别在于framework是如何对待用户自定义的转换运算符的。

On the other hand,the structure of differential operator and that of difference operator are very similar,therefore,it is a urgent task to find in the current scientific research a new theoretical framework,which can unify the continuous systems and the discrete ones for the sake of study in order to not only avoid unnecessary repetition in work but also be able to make better insight into the nature of the differences among different systems.

因此，能否找到一个新的理论框架，将连续系统与离散系统统一(来源：9dABC论9e9e文网www.abclunwen.com)起来进行研究，从而避免不必要的重复工作，且能更好的洞察不同系统之间的本质差异，已是当前科学研究的当务之急。

From the fundamental theory of the teleportation, an arbitrary two-partite state can be teleported via a quantum channel of common eigenstates of number sum operator and phase difference operator.

本文从基本的隐形传态理论出发，用粒子数和算符以及相位差算符，并通过这两类算符的共同本征态作量子通道实现了任意两粒子态的隐形传态。

A strange and mysterious deep sea creature.

一种奇异、神秘的深海生物。

It's a yellow rectangle .

这是黄色的长方形。