This paper reviews the present situation and progress of strength evaluation, and puts forward analysis method of structure.
本文综述了自升式平台强度评估的技术进展和现状，提出强度分析的计算分析方法。
This paper firstly introduces background, conception, research idea, present situation and progress at home and abroad of e-cash technology.
本文首先介绍电子现金产生的背景、概念、研究思路、国内外现状与进展。
The present situation and progress of investigation on rocket based combined cycle (RBCC) propulsion system was introduced both at home and abroad in details.
对火箭基组合循环(RBCC)推进系统的国内外研究现状和进展进行了详细综述。
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