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Lectures on Numerical Methods in Bifurcation Problems
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The Theory of the Theatre by Clayton Hamilton
The Mathematics of Investment
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Methods for Finding Zeros in Polynomials
Lectures on Stochastic Flows and Applications
Educational Psychology by Edward L. Thorndike
The Last Days of Tolstoy by V. G. Chertkov
Globalization and Responsibility
Lectures on Siegel Modular Forms and Representation by Quadratic Forms
Lectures on Topics In One-Parameter Bifurcation Problems
History of the Incas by Pedro Sarmiento de Gamboa
Linear Algebra: Theorems and Applications
Lectures on Stochastic Differential Equations and Malliavin Calculus
A Short Biographical Dictionary of English Literature
Lectures on Sieve Methods and Prime Number Theory
Dollars and Sense by William Crosbie Hunter
The Theory of the Theatre by Clayton Hamilton
The Mathematics of Investment
Occupiers of Wall Street: Losers or Game Changers
The Solution of the Pyramid Problem
Lectures on Moduli of Curves
Walden by Henry David Thoreau
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一般焊接原理与实用性
Posted on 2010-04-28
|
电子工业必须用到的焊锡焊接（Soldering）可简称为“焊接”，其操作温度不超过400℃（焊点强度也稍嫌不足）者，中国国家标准（CNS）称为之“软焊”，以有别于温度较高的“硬焊”（Brazing，如含银铜的焊料）。至于温度更高(800℃以上)机械用途之Welding，则称为熔接。由于部份零件与电路板之有机底材不耐高温，故多年来电子组装工业一向选择此种焊锡焊接为标准作业程序。由于焊接制程所呈现的焊锡性（Solderability）与焊点强度（Joint Strength）均将影响到整体组装品的品质与可靠度，是业者们在焊接方面所长期追求与面对的最重要事项。
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