For low temperature testing, analysis and quality of aggregatethickness of low-temperature evaluation indexes.
进行低温试验，分析粗细集料质量比与低温评价指标的关系。
2
The aggregatethickness of loess has a clear regional variation with the east of Gansu, the north of Shannxi, the east of Shanxi being the center regions.
黄土堆积的总厚度在地域上有明显的变化，陇东、陕北、晋西是黄土分布的中心区。
3
This paper proceeds some discussion about the optimized sand-ratio, ave rage paste thickness and aggregate packing degree in the packing concrete mix proportion design.