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In common nomenclature most primary amines are named as alkylamines. In systematic nomenclature they are named by adding the suffix –amine to the name of the chain or ring system to which the NH2 group is attached with elision of the final e Primary Amines;
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§9-1 压杆稳定的概念 (The basic concepts of columns) §9-3 其它支座条件下细长压杆的临界压力 (Euler’s Formula for other end conditions ) §9-2 两端铰支细长压杆的临界压力 (The Critical Load for a straight, uniform, axially loaded, pin-ended columns) §9-4 欧拉公式的应用范围•经验公式 (Applicable range for Euler’s formula • the experimental formula ) §9-5 压杆的稳定校核 (Check the stability of columns) §9-6 提高压杆稳定性的措施 (The measures to enhance the columns stability)
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18.1 Introduction The carboxyl group, -COOH, -CO2H, is one of the most widely occurring functional groups in chemistry and biochemistry. Not only are carboxylic acids themselves important, but the carboxyl group is the parent group of a large family of related compounds
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§10-1 概述 (Instruction) §10-2 动静法的应用 (The application for method of dynamic equilibrium) §10-3 构件受冲击时的应力和变形(Stress and deformation by impact loading)
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§1-1 截面的静矩和形心(The first moments of the area & centroid of an area) §1-4 转轴公式 (Rotation of axes) §1-2 极惯性矩 惯性矩 惯性积 (Polar moment of inertia Moment of inertia Product of inertia) §1-3平行移轴公式 (Parallel-Axis theorem)
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§6-1 基本概念及工程实例 (Basic concepts and example problems) §6-4用叠加法求弯曲变形 ( Beam deflections by superposition ) §6-3用积分法求弯曲变形 (Beam deflection by integration ) §6-2挠曲线的微分方程(Differential equation of the deflection curve) §6-5 静不定梁的解法(Solution methods for statically indeterminate beams) §6-6 提高弯曲刚度的措施 (The measures to strengthen rigidity)
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(Axial tension & Compression, Shear) §2-1 轴向拉压的概念及实例 (Concepts and examples of axial tension & compression) 第二章 轴向拉伸和压缩 Chapter2 Axial Tension and Compression §2-2 内力计算 (Calculation of internal force) §2-3 应力及强度条件 (Stress and strength condition) §2-4 材料在拉伸和压缩时的力学性能 (Material properties in axial tension and compression) §2-5 拉压杆的变形计算 (Calculation of axial deformation) §2-6 拉压超静定问题 (Statically indeterminate problem of axially loaded members) §2-7 剪切变形(Shear deformation)
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§14-3 对称及反对称性质的应用 (Application about symmetrical and antisymmetrical properties ) §14-1 静不定结构概述(Instruction about statically indeterminate structure) §14-2 用力法解静不定结构(Solving statically indeterminate structure by force method)
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各国经济是相互联系并相互影响的。“国际传递”、“相互依赖”、“经 济全球化”等便是对这种相互联系和相互影响的描述和探讨。 在国际经济中,各国存在着使本国利益最大化的动机,为了这一目 标,各国可能在对外经济关系方面采取相应的政策措施,例如关税 保护、限制资本流动、对外倾销等,这些措施在使本国利益最大化 时却会损害别国的利益。进而导致别国也采取同样的政策,结果是 相互的政策效果抵销,世界的福利下降,对各国都没有好处。如果 进行国际经济政策协调,可以减少这种损失
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区域经济一体化发展趋势 数量不断增多。《2003年WTO年度报告》指出,截至2002年6月,向GATT/WTO报 告的区域贸易一体化共250项,其中129项是1995年WTO建立之后报告的。目前正 在实施的区域贸易协定有170项。WTO估计到2005年可能会有300项左右的区域贸 易协定
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