查询词典 advantages and disadvantages

Through the comparison of the advantages and disadvantages of each method and their interconnections, in allusion to the idiographic circs of Changlejiang, which is one anabranch of Caoejiang river, this paper adopts section- beginning control to calculate the environmental capacity, applicates the physical connotations as welI as the adoptable conditions of each method into practice by the numbers ,the results of calculation indicating that all the methods are feasible and reliable.

本文通过分析比较各方法的优劣及其相互联系，针对曹娥江支流--长乐河的具体情况，采用段首控制对其水环境容量进行计算，系统地将各方法的物理含义及其适用奈件推广到实际中。计算结果证明了方法的可靠性。

Comparing the advantages and disadvantages between computer drafting and manual drafting, as well as the drafting of some common figures of curre and curred surface are by three common diagrams of space analytic geometry in advanced mathematics for the purpose of more accurate and perfect drafting.

用高等数学教科书中空间解析几何3个常用图例对计算机与手工绘图的优劣进行比较，并论述了如何用计算机绘制空间解析几何中一些常用曲面及曲线图形，从而使图形更精确、完善的问题。

Studied present measuring methods" advantages and disadvantages, and presented the necessity and importance of researching propellant transient heat transfer.2.according to 130 and aeronautic 90 rocket projectiles" structure, analysed and acquired physical and mathematical models for propellant transient heat transfer, also designed propellant temperature field simulation units for test.3.acquired discrete transient heat balance equation and temperature calculation program, and gave contrasting curves between experimental temperature values and program calculating temperature values as well as maximum errors and average square root errors between them.4.by programs based on the first class boundary condition, worked out temperature distribution in propellant temperature field simulation units at different time, analysed temperature field distribution law and main elements affecting heat transfer, acquired propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.5.established transient heat transfer mathematical model and temperature calculation program for the third class boundary condition, drew contrasting curves between temperature experimental values and calculation values and gave maximum errors and average square root errors between them, got temperature distribution in the simulation unit at different time and main elements affecting heat conduction, figured out propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.

分析了现有测试方法的优缺点，提出了研究推进剂瞬态导热的必要性和重要性。 2。根据130和航90两种火箭弹的结构，分析得到了推进剂传热的物理模型和数学模型，设计了推进剂温度场模拟实验装置。 3。得到了离散形式的瞬态热平衡方程和温度场计算程序，给出了实验温度与程序计算温度值的对比曲线及其最大偏差与均方差。 4。利用程序求出了第一类边界条件下、不同时刻推进剂温度场模拟装置中的温度分布，分析了温度场的分布规律和影响传热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处的温度时间曲线并给出了两者之间的最大偏差与均方差。 5。建立了第三类边界条件下的瞬态导热数学模型和温度计算程序，求出了温度实测值与计算值的对比曲线并给出了两者之间的最大偏差与均方差，得到了不同时刻温度场模拟装置的温度分布与影响导热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处温度及两者之间的最大偏差与均方差，讨论并确定了能代表130和航90推进剂温度的特征点的位置。

At the first session of bookish assembly hosted by Secretary General Huang Chin-ying on June 13, Mr. Chuang Hong-kai reported on the book Voluntary Carbon Markets: An International Business Guide to What They Are and How They Work , written by Ricardo Bayon, Amanda Hawn and Katherine Hamilton. The book discussed "voluntary carbon markets" through definition, demand and supply, and the advantages and disadvantages of the market-operating model, cited many expert opinions, and made comparison with the carbon markets of the Kyoto Protocol.

6月13日的读书会在黄晋英秘书长主持下，第一场由庄紘恺先生报告《Voluntary Carbon Markets： An International Business Guide to What They Are and How They Work》，作者为Ricardo Bayon、Amanda Hawn、Katherine Hamilton等，本书从定义、供需及市场运作模式之利弊来论述「自愿性碳市场」，并举出多个专家观点，将之与京都议定书的碳市场比对。

Network has its advantages and disadvantages there are advantages to the dissemination of speed, high-impact, spread widely.

网络有其优势，也有劣势，优势是传播速度快，影响大，传播广。

In this paper, the advantages and disadvantages of some traditional applications architecture are Reacher have been reserched, and the advantages of some kinds of Open Source Module, based on the design and implement of the system "HuangHuaGang Coal Transportation and Workflow System" are lucubrated.

本文在设计和实现"黄骅港煤炭运输和工作流系统"的基础上，研究了多种传统应用软件构架的优缺点，并深入分析了各种新的开源组件应用的优势，从而提出了应用Struts组件、Hibernate组件和JBPM工作流引擎三个子框架的服务器应用软件框架模型。

According to the feature that the advantages and disadvantages of the three methods are supplementary to each other, a new method called"Synthetic Direct Method"has been proposed for fast direct transient stability analysis, which compositely uses the advantages of three methods and is fault tolerant and with higher accuracy and reliability.

本文重点对此进行了深入研究，主要工作如下：对常用三种直接暂稳分析算法，即：相关不稳定平衡点法、势能边界面法、扩展等面积准则法，从计算假定、计算精度、计算速度及可信度等多方面，在理论上及实际计算上进行了大量的研究和比较，分析了大误差发生的原因，并对方法作了改进和完善。

Nanometers photocatalytic principles and characteristics are introduced. Especially the advantages and disadvantages of decontaminating air are showed by single nanometer photocatalysis or activated carbon fibers. The advantages of their combination are analyzed.

本文重点介绍了纳米光催化原理、特点及纳米光催化或活性炭纤维单独净化空气时的优缺点，分析了将纳米光催化和活性炭纤维相结合的方式及优点。

In the paper the author disagrees to introduce DB in China and compares the advantages and disadvantages of both DB and DC plan, and discusses lessons of DB pension plans in Anglo-American economies, DC scheme's trend in the world and its comparative advantages for the competitiveness of Chinese enterprises, effects of DB and DC on economic outcome and social development, and development paths in countries with different juristic systems. Finally, this paper suggests measures for recompensing the older employees of their rights in occupational pension.

文章对DC和DB两个模式进行了优劣比较，分析了英美DB型企业年金模式的沉痛教训，论述了DC型的优势和发展潮流及其对中国提升企业竞争力的利处，以及它们各自对经济结果和社会发展的不同影响，阐述了不同国家继受不同法系导致的不同发展道路和中国发展企业年金应该努力的制度方向，进而分析了中国公共政策的制定过程中的博弈问题；提出了补偿老年职工企业年金权益的设想和具体办法。

Based on the analysis of advantages and disadvantages of all kinds of web caching protocols, a web caching content express scheme based on RCD algorithm is proposedd. We expect to integrate advantages of all algorithms, to improve the response time of network access and reduce the load of web server.

本文通过对各种网络缓存协议优缺点的分析，提出了一种基于RCD算法的网络缓存内容表达方案，希望综合各种算法之长，达到提高网络响应速度，减少服务器负载的作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。