The rivers running across large area with emergence of Mesozoic and tertiary stratum usually have high sediment concentration and large modulus of erosion.
穿过有大面积中生界和第三系地层出露地区的河流，其含沙量高，侵蚀模数大。
2
This paper researches the different testing methods of soil resilient modulus, and primarily evaluates their merits and shortcomings, applicable area and mend measure.
本文通过对不同土基回弹模量测试方法的研究，初步评价了其优缺点、适用范围及改进措施。
3
The study on regional distribution, area and sediment yield of different modulus of sediment transport provides a support to decide the coarse sand concentrated coming area.