1) the great particle size soil block
非蚀性大粒径土块
1.
Studied the influence of the grain-size distributions of surface soil, soil moisture, the great particle size soil block and comprehensive surface condition to soil dust emission.
在以上实测数据及其处理结果的基础上,采用DPM(Dust Production Model)模型模拟计算了甘肃省民勤地区三次沙尘暴期间的跃移通量、粉尘释放通量、粉尘释放率;并研究了民勤地区地表微团粒的粒径分布对粉尘释放通量的影响;在研究以民勤地区为例的干旱、半干旱地区土壤粉尘释放通量的数值模拟中,采用DPM粉尘释放模型对干旱、半干旱地区土壤粉尘释放通量进行模拟,研究了表土微团粒粒径分布、土壤湿度、土壤中非蚀性大粒径土块以及综合地表状况等对干旱、半干旱地区土壤粉尘释放的影响。
2) large size crushed stone soil
大粒径碎石土
1.
On basis of the test on large size crushed stone soil by large compaction instrument, this paper gives test results on maximum dry density and optimum moisture content of crushed stone soil.
本文用自制的大型击实仪对大粒径碎石土作了试验研究 ,得出了碎石粒径 6 0 mm以下 ,碎石含量为 2 5 %~ 5 5 %情况下碎石土最大干密度与最佳含水量的试验结果 ,对大粒径碎石土填方质量控制有重要意
3) grain diameter of erosion
浸蚀粒径
1.
According to the pressure on arch bridge formed by grains, the modal of arch bridge of grains is established on modal of threepinned arch and grain diameter of erosion is worked out while arch bridge of grains is forming.
土工织物保护无粘性土时,土/土工织物与界面有时会形成天然滤层,天然滤层可由一些比较大的颗粒构成,根据颗粒拱桥的受力情况,从三铰拱模型出发建立颗粒拱模型,并求出颗粒拱形成时的浸蚀粒径。
4) Partical diameter for wind erosion
风蚀粒径
5) large particle permeable asphalt concrete mixture
大粒径透水性沥青混凝土混合料
6) Diameter f the stone
石块粒径
补充资料:大土
1.旧称来自孟加拉和马德拉斯的鸦片为"大土"﹐成球状﹐价格昂贵。
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