The design, preparation and properties evaluation methods of FGM were reviewed. Application and prospect of FGM were described.
本文综述了梯度功能材料的设计、制备及性能评价方法，介绍了其应用及发展前景。
Observations on surface defects, metallurgical examination and mechanical properties evaluation of the oil pipes were performed to assess the possible failure reasons.
通过对油管表面缺陷、金相组织的观察及油管力学性能的测定确定两件油管的失效原因。
This article has analyzed the different views of evaluation definition, explored the essentials of evaluation, then put forward the concept of the evaluation of properties evaluation.
本文通过对评估定义的几种意见分析和评估实质的认识，概括出资产评估中评估的概念。
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