The present status and development trend of sheet steel and special steel for automobile industry are reviewed in this paper.
叙评了汽车工业用板材及特殊钢的现状和发展趋势。
The specifications, the technological present status and development trend of antiwear hydraulic fluids were briefly described.
简述了抗磨液压油的规格，介绍了抗磨液压油技术现状和发展趋势。
Furthermore, the status in present and development trend of dynamical research of mechanism with clearance and chaotic vibration are discussed.
此外，对含间隙机构及混沌振动的研究现状与发展趋势也进行了一些有益的探讨。
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