A review on the research of the tribological modification of PTFE is given.
综述了聚四氟乙烯当前摩擦学改性研究进展。
This paper has a review on the research of the French nobility during the early modern period, and points out its achievements and shortcomings.
本文对近代前期法国贵族的国内外研究状况进行了回顾、梳理和总结,指出现时研究的成绩和不足。
Through review on the research of forestry finance at home and abroad, this paper puts forward a research framework of forestry finance system in China.
通过对国内外林业金融研究现状的总结评述,提出了我国林业金融服务体系研究框架。
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