95O3 with large surface were prepared by combustion method.
采用燃烧法合成大比表面钙钛矿型复合氧化物多孔材料LaCoO3和La0。
Study on Swell Ratio Model of PP Foam;
运用正交实验的方法和数学回归的方法,对实验数据进行分析,得到了聚丙烯发泡体系剪切速率与切应力的关系,以及胀大比与毛细管数的关系表达式。
Application of large scale digital imaging system in mine terrain survey;
大比例尺数字成图系统在矿山地形测量的应用
The develop tendency of large scale digital mapping;
大比例尺数字测图的发展趋势
Digital mapping of large scale map for GIS;
面向GIS的大比例尺测图