An improved method of two-dimensionaldevelopment in thin-layer chromatography is described in this paper.
描述了一种薄层色谱二维展开的改进方法。
2
Based on the saltation, creeping and stability models, a two-dimensional numerical model is established to study the development process of aeolian ripples.
通过简单的跃移模型、蠕移模型和稳定模型对风成沙纹的形成过程进行了二维数值模拟研究。
3
To research on it and contribute to its development, this paper brings forward a business model analysis framework which is applicable to handset two-dimensional code business.