材料

Increasing the volume fraction of MeO would be good to the arc welding resistance but would lead to a higher electrical resistivity of the electrical contacts.

增大MeO的体积分数有助于提高触头材料的抗熔焊能力，但会增加触头材料的电阻率，为保证触头材料电性能，MeO体积分数宜控制在20%以内。

The principles of design,preparation process,the factors effecting on the structure and the development status of synthesis for metallorganic frameworks are discussed.

本文讨论了金属有机骨架材料的设计原理、制备过程、骨架结构的影响因素以及骨架合成的发展状况，总结了金属有机骨架材料在催化剂、气体的储存和分离方面的应用，并对这种新型多功能材料在设计、合成与应用中的广阔前景做了展望。

In the last few decades, extensive research has been focused on the exploration of new microporous materials beca...

无机微孔材料在催化、环境及功能材料方面的广泛应用使得这类材料的合成研究一直是人们关注的热点。

In the last few decades, extensive research has been focused on the exploration of new microporous materials because of their wide applications in the field of catalysis, environment and functional material.

无机微孔材料在催化、环境及功能材料方面的广泛应用使得这类材料的合成研究一直是人们关注的热点。

The phenomenon demonstrates that the perovskite is a stable state with low free energy. The (1-x) PMN- x PT system has a morphotropic phase boundary separating the tetragonal and rhombohedral phases. The MPB is located in the vicinity of x = 33%. The PMN-PT ceramics near the phase boundary possesses excellent piezoelectric performance. d33 can reach to 540 pC/N. kt and kp can be up to 0.45 and 0.62, respectively.

在准同型相界附近，PMN-PT陶瓷材料具有较好的压电性能，d33可达540 pC/N，kt、kp分别可达0.45和0.62；在准同型相界附近，极化后的（1-x）PMN-xPT陶瓷材料（0.22 x 0.35）的介电常数在温度诱导FR-FT相变过程中发生突变；PMN-PT陶瓷材料在FR-FT相变过程中呈现出一个热释电峰，反应了自发极化在相变过程中发生了非线性的变化。

The emergence and development of shear bands were simulated numerically by PFC3D under different confining pressures. It was shown that the microscopic parameters of granular materials affected markedly the macroscopic response of the noncohesive frictional material.

通过进一步分析颗粒细观结构参数变化对组成材料的宏观力学的影响及其剪切位移场的形成和发展规律，结果表明颗粒介质之间的摩擦系数、颗粒组成材料的孔隙率对材料的宏观力学行为有比较明显的影响。

For industrial purposes, materials are divided into engineering materials or nonengineering materials.

就工业效用而言，材料被分为工程材料和非工程材料。

In the last two decades, lots of experimental and theoretic research on the hardening behavior and flow characteristics of metallic materials under nonproportional cyclic loading, and ratcheting for metallic materials has been done.

近年来，国内外不少学者对材料非比例应变循环加载下的材料循环附加硬化和流动特性进行了深入的研究，也对材料在应力循环下的棘轮行为进行了实验研究。

Studies show that RSA of organic molecules is strictly an electronic effect, which results in rapidly optical response and large nonresonant third-order optical susceptibility.

研究了基于反饱和吸收的有机材料的光学限幅性，研究结果表明不同的有机材料的反饱和吸收过程，直接反映了该材料光限幅的能力。

In this project the seed cells, scaffolds and bioactive factors are combined with gelatin and silane through the sol-gel, freeze-drying methods. The porous materials having proper physicochemical properties and good biocompatibility have been produced and utilized as the scaffolds for bone tissue engineering and organoid artificial skin.

该项目应用明胶和硅烷，通过溶胶-凝胶、冷冻干燥等方法，将种子细胞、支架材料、以及生物活性因子等结合起来，获得了具有适当理化性质、良好生物相容性的多孔材料，并将其作为组织工程骨和组织化人工皮肤的支架材料。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！