A field trial to assess the type of equipment required to compact soil, the number of passes needed, and the thickness and moisture content of the soil layer, in order to achieve a high soil density for engineering works.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。