查询词典 Boolean calculation

Fourth, Based on sample data collected in Shenzhen city in 2003, the paper, from various perspectives, calculates nominal VAT rate for goods sold domestically or internationally. By the means of the calculation of the extent of indirect nominal tax burden shifting, we can get the economy tax burden from evaluating some trades'tax burden shifting range of Shenzhen VAT taxpayer. This paper also analyses the problems and the reasons of it and proved that the result of the separate calculation of domestic sales nominal tax burden and export sales tax burden can more realistically reflects the enterprises'nominal tax burden.. Enterprises with higher nominal tax burden can transfer their most parts of their nominal tax burden to the consumers, but the enterprises with lower nominal tax burden have to bear all nominal tax burden. Thus, when measuring the properness of tax burden from the VAT taxpayer, a comparison between economic tax burden and optimum tax burden should be considered.

第四，本文以2003年度深圳市数据为例，从不同的口径分别用经典名义税负测算法和内外销分别测算法测算了深圳市增值税纳税人的名义税负，运用间接税税负转嫁程度测算模型，测算了深圳市增值税纳税人部分行业税负转嫁的程度，进而得出其经济税负，并分析了深圳市增值税纳税人税负存在的问题以及成因，验证了内外销分别测算法得出的结果更能真实地反映企业的名义税负，得出以下结论：名义税负较高的行业，其经济税负不一定高，而名义税负较低的行业，其经济税负并不一定低，在衡量增值税纳税人的税收负担是否适度的问题上，不能简单的将名义税负与最优税负比较，而应将经济税负与最优税负比较。

C completed the calculation method piecewise linear, quadratic interpolation, and the region between the Lagrange interpolation calculation!

利用C++完成计算方法的分段线性，二次插值和全区间拉格朗日插值的计算！

The rational and veracious quotation of the injection mould is very significant for the mould corporation. The price of the injection mould is divided into three parts, refined calculation, measure of value by quoter and proximate calculation on rules.

针对模具企业对注塑模具合理准确报价的要求，将注塑模具产品的价格组成分为可准确计算、人工经验赋值、按规则估算三部分，在MS SQL数据库上借助Delphi编程软件环境，完成了注塑模报价系统。

Dynamic programming algorithm was introduced to solve the problem. Based on discussion of calculation complexity and effectiveness, the exact DP Algorithm was successfully used in operative schedule of the collecting bucket in multi-car-single-layer mode, which has few service nodes. For problems with large number of service nodes, restricted DP algorithm was constructed to avoid rapid expand in calculation and memory demands during programming process. The restricted DP algorithm, successfully used in single-car-multilayer and compound service modes, gets balance between near optimal programming results and reasonable programming time, so as to meet the real time schedule demands.

文中首先在TSP-STW问题的动态规划模型基础上，论述了计算机精确动态规划解法的求解策略和方法以及算法的有效性和复杂性，并将其成功应用于服务节点数相对较少的多小车单层配药服务模式中集中料斗的集药动作规划；在进行服务节点数较多的单小车多层服务模式中取药小车的运动规划时，为限制计算量和存储空间需求的迅速膨胀，引入以合理限制动态规划算法在每一阶段保留的最大状态元素数为核心的有限动态规划法，以便在求解结果的优化程度和规划时间上取得均衡，达到实时调度的要求。

In the process of calculation ,not only the decouplable feature of symmetrical elements in the coordinate system of symmetrical components is fully utilized,but also the symmetrical parts and unsymmetrical parts are treated as separate blocks, thus the efficiency of calculation is rasied moreover.

建立用于故障分析的网络的数学模型是计算机编程计算的基础。当前在电力网络中最常用的网络参数矩阵有节点参数矩阵和支路参数矩阵。在故障分析计算中一般采用网络节点参数矩阵作为电力网络的数学模型，又主要使用节点导纳矩阵作为分析的基础。

precise calculating formula is derivated to determine magnification ratio of voltage,input resistance and output resistance in amplifying circuits based on th feedback circuit model with cascade voltage.with th new calculating methods put forward by the author,it is possible to solve the problems in terms of calculation in amplifying circuits,the key problem being low level of exactness.the research shows the influence of components′ parameters of basic amplifying circuits and feedback circuits on feedback amplifying circuits.the results of the research may contribute to design amplifying circuits and electronic instrument with higher performance,due to the simpler calculation in the design of feedback circuit with cascade voltage.

摘 要：在建立电压串联反馈电路模型基础上，推导出放大电路中的电压放大倍数、输入电阻、输出电阻的精确计算公式。提出新的计算方法，从而解决了放大电路计算不方便，精确度不高、准确性不够的问题。同时进一步揭示了基本放大电路、反馈电路元件参数对反馈放大电路的影响关系。为设计出高性能放大电路及电子设备指明了方向，更加方便于电压串联反馈电路的计算。

A pattern of iteration calculation of voltage sag under load fluctuation is built to avoid the recalculation of power flow for each time of iteration, thus the calculation efficiency of the proposed algorithm is improved.

文中建立了负荷波动时的电压暂降迭代计算格式，避免了每次迭代时重新计算潮流，提高了算法的计算效率。

In this paper, the author sets up the dynamic model of the vibratory extracting-driving piling machine, and carries out the dynamic analysis, parameter calculation and Matlab's simulation for this model. Using the equation reciprocity law to carry out the calculation of soil parameter and simulation, and using the genetic algorithm to make optimization of the machine on the basis of the simulation, the author gets the optimum self-induced vibration frequencies of the machine changing with the depth of the pile and the optimization result of other parameters, thus reaching the conclusion that along with the increase of pile sinking depth, the optimum self-induced vibration frequency becomes bigger, and the vibration mass becomes smaller, hence deepening the knowledge of the dynamic performance of this system.

本文建立了振动沉拔桩机的动力学模型并对这一模型进行了动力学分析、参数计算和Matlab仿真，并利用方程对等法进行土壤参数的计算和仿真，又在仿真的基础上使用遗传算法对桩机进行了优化，从而得出了路基加固振动沉拔桩机随沉桩深度变化而改变的最佳激振频率以及其它参数的优化结果，并得出了随沉桩深度的增加，桩机的最佳激振频率由小变大，最佳参振质量由大变小的结论，深化了对该系统动力学性能规律的认识。

In this paper, the author sets up the dynamic model of the vibratory extracting-driving piling machine, and carries out the dynamic analysis, parameter calculation and Matlabs simulation for this model. Using the equation reciprocity law to carry out the calculation of soil parameter and simulation, and using the genetic algorithm to make optimization of the machine on the basis of the simulation, the author gets the optimum self-induced vibration frequencies of the machine changing with the depth of the pile and the optimization result of other parameters, thus reaching the conclusion that along with the increase of pile sinking depth, the optimum self-induced vibration frequency becomes bigger, and the vibration mass becomes smaller, hence deepening the knowledge of the dynamic performance of this system.

本文建立了振动沉拔桩机的动力学模型并对这一模型进行了动力学分析、参数计算和Matlab仿真，并利用方程对等法进行土壤参数的计算和仿真，又在仿真的基础上使用遗传算法对桩机进行了优化，从而得出了路基加固振动沉拔桩机随沉桩深度变化而改变的最佳激振频率以及其它参数的优化结果，并得出了随沉桩深度的增加，桩机的最佳激振频率由小变大，最佳参振质量由大变小的结论，深化了对该系统动力学性能规律的认识。

In order to resolve this problem,an effective conversion of fitted-body coordinate has been used in numerical simulations of flow field within a facture of layered medium ,resulting in a successful transformation of 2D flow-field calculation within a fracture from a complex physics domain to a regular calculation domain.

为了有效地攻克这一技术难关，在层状介质缝内流场数值模拟中，采用了有效的贴体坐标变换，成功地将二维缝内流场计算从复杂的物理域转换到规则的计算域，从而为我国全三维水力压裂数值模拟软件的开发和应用提供了良好的理论基础和新的思路。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。