The oriental coefficient of random fibers in composite is an important factor to describe distribution form of fibers.
纤维在复合材料中的方向系数是描述纤维分布形态的重要参数,对纤维的增强、增韧与阻裂效应有着显著的影响。
Development trend of Yunnan province's sulphuric acid and phosphorous fertilizer industries;
云南省硫酸磷肥工业的发展方向
Current papermaking equipment research and its developmental trend;
当前造纸设备研究与发展方向
This article has reviewed the development and application of corrosion protective coatings at home and abroad and indicated the development trend.
概述了国内外高性能防腐涂料主要品种的开发和应用情况,并提出了高性能防腐涂料的发展方向。
Problems and orientation of fertilizer management in Guangdong;
广东省肥料管理的问题与方向
The Identification, Rule and Orientation of Modification of the Agriculture Structure;
农业结构调整的特点、原则和方向