Standard specification for materials for soil - aggregate subbase , base , and surface courses 土壤集料次底層底層和表層用料標準規范
Standard test methods for density of soil and soil - aggregate in place by nuclear methods shallow depth 核放射法現場測定土壤和土壤集料密度的標準試驗方法
Standard practice for classification of soils and soil - aggregate mixtures for highway construction purposes 公路建設用土壤和土壤集料混合物分類的標準實施規程
Standard test method for measuring stiffness and apparent modulus of soil and soil - aggregate in - place by an electro - mechanical method 用電動機械法測量土壤和土壤集料實體的硬挺度和表觀模數的標準試驗方法
With continuing of rainfall , the influence of soil - aggregated degree was very great . seventhly , mutual effect between soil crust and raindrop splash was studied , the result showed that splash erosion rate was greatly increased , once soil surface crust was formed 七、表土結皮形成對土壤濺蝕的影響:隨著表土結皮的逐漸形成,土壤抗侵蝕能力增強,土壤濺蝕速率急劇減小。