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We also observed that several object-oriented design principles were very helpful in this implementation, including the Open-Closed principle, the Dependency Inversion principle, and use of the Strategy design pattern.

我们也观察几项面向对象的设计原则是非常有用的在这实施，包括Open-Closed原则，附庸反向对战略设计样式的原则和用途。

This article first on to the topic background, the topic object basic survey and the topic research goal has given brief showing, then has made a detailed elaboration to the AC-DC-AC inversion principle of work, emphatically has analyzed based on the AC-DC-AC inversion control principle as well as the SPWM profile several productions method.

本文首先就对课题的背景，课题对象的基本概况以及课题研究的目的做了简要的说明，然后对AC-DC-AC逆变器的工作原理做了一个详细阐述，着重分析了基于AC-DC-AC逆变器的控制原理以及SPWM波形的几种生成方法。

A general principle, inversion of onus probandi, and an exception principle, the onus of proof being on the plaintiff are adopted in China.

就我国而言，行政诉讼举证责任有一般原则即"举证责任倒置"和例外原则即原告举证。

A detailed analysis of the main circuit introduction, control method and working principle of the direct-drive wind energy conversion system are given to introduce the two important parts a of this paper: First part is the control method of the multiple boost convertor, the important instantaneous current control method of this paper is given through the analysis of the main circuit structure, control method and working principle. Then a steady-state analysis for low-frequency, a high-frequency component analysis, and a closed-loop tracking performance analysis for dynamic response are provided to analyze the method proposed; And the second part is the control method of invertor.

在系统变流器整体结构分析的基础上，引出本文重点研究的两个变流环节的控制：第一部分是系统升压斩波器的控制，通过分析相关主电路结构、原理，建立了数学模型，引出本文重点研究的瞬时值控制策略的概念和具体实现，并对升压斩波器的瞬时值控制策略进行了详细的高频、低频模型分析和稳态、动态性能分析；第二部分是系统并网逆变器的控制，通过对逆变器主电路的数学建模和控制要求分析，研究了并网逆变器的瞬时值控制策略，包括电感电流控制内环和直流电压控制外环的具体设计和实现方法。

However, the principle that the minority is subordinate to the majority, as an old principle of decision-making habitually used by different types of countries, has an irrefragable validity.

随着民主政治实践的发展，人们逐步认识到多数原则的局限及其在运行中存在的问题。社会主义民主的本质是人民当家作主，是劳动人民内部平等关系的社会形式，是民主的内容及实现形式的辩证统一。

We use Finite Element Method to simulate the isoclinic and isochromatic patterns of photoelasic experiments and the fringes while the secondary principle stress varies along the path of light and the secondary principle direction fixed.

以有限元素模拟光弹应力分析中，散射式光弹中沿光通过路径其次主应力方向改变之条纹影像。

Thus,the principle and methods for widening the ranges oftime and space for applying water production function of rice and principle and methods fordrawing the isogram of WSI based on the isogram of ET0 and the soil map have beenestablished.

通过参照作物需水量及其频率以及不同地区土壤有效含水量为媒介，建立了对水分敏感指标在不同水文年份和不同地区进行预报的数学模型，据此提出了水稻水分生产函数在时、空两方面插补、延长、移用与扩展的理论与方法。

The information of database is one of the key technology in CIMS. In this paper, we farther propose and analysis the model and design principle on dynamic information integration of isomerous database based on statical information integration in SB-CIMS, offers a brief introduction to its design goal and function. The implementation technology and structure principle of TIDS system are discussed in detail.

数据库信息集成是CIMS中关键技术之一，本文在实现SB-CIMS静态信息集成的基础上，进一步提出并分析阐述了异构库动态信息集成模式与设计原理，概要介绍了软件系统的设计目标与功能，并对系统实现技术与软件结构原理作了较详细论述。

Make consequently original economics principle and notional get into trouble, among them, be like below a few respects basically: One, pay is degressive law pay is degressive law, the earliest Thoms Malthus put forward 1798, be in later 19 centuries 70 time Jevons , Mengeer with Waerlasi 3 people put forward limit effectiveness at the same time almost degressive principle, founded limit effectiveness axiology.

因而使得原有的经济学原理和概念陷入困境，其中，主要的有如下几个方面：一、报酬递减律报酬递减律，最早是托马斯·马尔萨斯在1798年提出的，后来在19世纪70年代杰文斯、门格尔和瓦尔拉斯三人几乎同时提出了边际效用递减原理，创立了边际效用价值论。

Rumjantsev used Hamilton's principle with Lagrange's multipliers to generate the dynamical equations of a rigid-fluid coupled system in 1954 and the dynamical equations and their dynamical boundary conditions of a fluid-elastic coupled system in 1969, where the fluid is incompressible and inviscid. In 1990, Liu used Jourdain's principle with Lagrange's multipliers to generate the dynamical equations of a rigidfluid coupled system, where the fluid is incompressible and viscid.

Rumjantsev利用带Lagrange乘子Hamilton变分原理于1954年建立了刚—流耦合系统的动力方程，于1969年建立了流—弹耦合系统的动力方程及其动力边界条件，其中所考虑的流体是不可压无粘液体；Liu利用带Lagrange乘子Jourdain变分原理于1990年建立了刚—流耦合系统的动力方程，其中所考虑的流体是不可压粘性液体。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。