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Beryllium Copper balls are used in a wide range of applications requiring very high strength and stiffness with good conductivity.

铍铜合金球是用在一个广泛的应用范围，需要非常高的强度和刚度，具有良好导电性。

The tangent stiffness matrix is obtained from the engineering strain and the principle for determining the limit point and bifurcation point is given.

由工程应变推导出几何非线性的切线刚度矩阵，并给出判断分歧点与极限点的准则，最后用一数值例题说明该方法的分析过程。

In the pipe application field, high requirements of stiffness and impact strength of the resin require the use of high density polyethylenes with higher molecular weight and bimodal molecular weight distribution.

在管材的应用域上，具高规格的韧性与冲击强的树脂通常需要使用高分子与双峰分子分布的高密聚乙烯为材质。

The stiffness may vary with time and temperature for a typical bitumen.

刚度可能随时间和温度的一个典型的沥青。

The design scheme of a new type test stand for measurement of bogie stiffness is put forward.

提出了一种新的转向架刚度试验台设计方案。

The main feature of BOPP films are improved stiffness, high tensile strength, excellent optics and good water barrier properties.

BOPP薄膜的主要特点是提高硬度，抗拉强度高，优良的光学和良好的水阻隔性能。

With the help of the optimization theory, we present the vertex solution theorem for determining both the exact upper bounds or maximum values and the exact lower bounds or minimum values of the dynamic response of structures, in which these parameters reach their extreme values on the boundary of the interval mass, damping, stiffness matrices and the interval external loads vector.

借助于优化理论，提出了确定结构动力响应精确上下界的极点求解定理，其中极值将在区间质量矩阵、阻尼矩阵、刚度矩阵和外载荷列向量的顶点达到。

This method provides the basis for analyzing stiffness and strength of 3-D braided composites.

为编织复合材料的刚度、强度性能分析提供了充分的条件。

Recent developments of research on predicting stiffness and strength of 3D braided composites were summarized.

综述了近年来国内外对三维编织复合材料的刚度和强度性能预测方法的研究进展。

Those yield a more effective means for the evaluation of strength and stiffness design of gun breech mechanism.

为火炮炮尾炮闩设计提供了一个更有效实用的结构校核手段。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。