查询词典 summation formula

The fundamental principal is, the value of any asset is the summation of the present value of its expecting cash flows.

由于预期现金流的特性不同，贴现现金流模型在实践中存在多种形式。

A problem of cable force optimization of cable-stayed bridge is equated as a nonlinear implicit optimization model. In the mathematical model, the object function is minimizing summation of bending strain energy and axial strain energy, and the constrain conditions are nonlinear and related to reasonable finished dead state. The optimization model is solved by projection gradient method, fully considering all kinds geometric nonlinearity.

把超千米级斜拉桥的索力优化问题归结为非线性隐式优化的数学模型，以系统最小弯压应变能为目标，根据合理成桥状态指定各种非线性约束条件，利用投影梯度法进行优化问题的求解，求解过程中充分考虑了各种几何非线性的影响。

It contains three parts of circuit:phase quantizer, data memory and weighting summation.

它包含了相位量化器、数据存储和加权相加三部分电路。

For additional flexibility, you can interactively reattach the reference connector of each segment to change the order of summation.

为了进一步提高灵活性，您可以交互重新连接每个区段的参考连接器来更改总结秩序。

The total summation we call knowledge or science is a web of ideaspointing to, and reciprocally educating each other.

我们称为知识或科学的总体概括是一张相互指点，相互教导的思想之网。

The exact residual modes for substructures with free interfaces are expressed according to the mixed expansion of dynamic flexibility in the summation of three terms,which include the Rubin s second- order approximate terms and their exact residual term.

采用动柔度混合展开公式导出自由界面子结构精确剩余模态的三项和表达式，它在保留Rubin 二级近似的同时补充了其精确余项。

It is the summation which the society and economy relation reflect essentially. The manpower capital property right have three common characters: exclusiveness、 resolvability、business and four special characters: the first one, the owner have not impartibility ownership and control right to the manpower capital himself. The second one, manpower capital can reflect in the different way of material capital when the property right deformity; the third one, manpower capital's employment and investment course are in-phase, the fourth one, the effective yardstick and mechanism of measuring manpower capital are absence.

在此基础上，概括出人力资本产权排他性、可分解性、可交易性的一般特征以及它的四个特殊特征：一是所有者对其自身的人力资本并不具有不可分离的所有权和控制权；二是当发生产权残缺时人力资本可以以迥然于物质资本的方式回应，通过关闭人力资本达到效用享有的均衡；三是人力资本的使用和投资过程是同步合一的；四是缺乏有效计量人力资本的尺度和机制。

Given the definition of a sample mean, and properties of summation, we can rewrite the first condition as follows

根据样本均值的定义以及加总的性质，可将第一个条件写为

In all zooplanktons, the site-occurrence-rates of Copepoda and Chaetognatha were the highest, 100% and 93.3%, and the average biomass of which were 298.56 mg·m-3 and 118.09 mg·m-3 and the summation accounted for 96.88% of total biomass. The result shows that these two species created a strong relationship with the distribution of saury fishing grounds, and their biomass can be considered as the important indicator of looking for the main saury fishing grounds.

在浮游动物中，桡足类和箭虫类占绝对优势，出现频率分别达到100%和93.3%，平均每立方米生物量为298.56 mg和118.09 mg，其和占总生物量的高达96.88%，严重影响了总生物量的空间分布，分析认为与中心渔场分布的关系最为显著，因此可将其生物量大小作为确定秋刀鱼中心渔场的重要指标。

However, tecent relies on the terminal advantage of several QQ user, use a year of time only with respect to the latercomers surpass the formers, to April 2005, at the same time online number amounts to QQ game 1.3 million, exceed old 3 strong summation, and old 3 sell in succession subsequently and chase scumble by force to go out.

然而，腾讯依托数亿QQ用户的终端优势，仅用一年时间就后来居上，到2005年4月，QQ游戏同时在线人数达130万，超过老三强的总和，而老三强随后纷纷出售并逐渐淡出。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。