Optimization of project subcontract jit procurement with a nash equilibrium model and its application in mining project 煤矸石淋溶重金属运移过程的水动力学模型及应用
The main factors influenced fractures development are the tectogenesis , the physical weathering and the chemical dissolution 影响裂缝发育的主要因素是构造、物理风化和化学淋溶作用。
The lateral or downward movement of dissolved or suspended material within soil when rainfall exceeds evaporation 淋溶作用当降雨量超过蒸发量时，土壤中溶解或悬浮物的向侧面或向下的运动
This distribution pattern of soil carbon was related to such factors as the precipitation eluviation and the organism activities in soils 土壤碳的这种分布格局与大气降水的淋溶、土壤生物活动等因素有关。
It was shown that the two - site kinetic sorption model and the two - region model provided a useful approach to quantify cadmium transport more efficiently 本文的另一部分工作是研究镉在田间土壤中淋溶的风险评价。
The central concept of alfisols is that of soils that have an argillic , a kandic , or a nitric horizon and a base saturation of 35 % or greater 淋溶土的主要特性是有粘化层，高岭层或氮化层和盐基饱和度达35或以上。
1 the leaching characteristics and vertical transport of 95zr in two representational soils ( panfan red soil and red - yellow earth ) in zhejiang province were studied with soil - pole simulation installation 1 、采用模拟土柱法研究了~ ( 95 ) zr在两种红壤(泮畈红壤和红黄壤)中的淋溶特性和垂直迁移。
The black earth is a kind of alfisol , with a thick layer of humus , loose texture , high fertility , high porosity ratio , poor permeability and a high content of clay , which is suitable for cultivation 摘要黑土是一种腐殖质层厚，质地松散，肥力很高，孔隙比较大而透水性差，粘粒含量高，适于耕作的淋溶土。
Most highly weathered and leached upland soils in s . e asia are so deficient in primary nutrients that economic yields of healthy crops cannot be produced , unless nutrients are added to the soil 东南亚大多数高度风化和淋溶的旱地土壤主要养分贫乏，以致除非向土壤施加养分，否则不可能获得健康作物的经济产量。
This climate make latosol usually as acidic , low levels cation exchanges capacity and low lever base cations , high levels of exchange al , with a high potential for leaching of plant nutrients 这种气候条件使砖红壤成为强酸性土壤，阳离子交换量和盐基饱和度低，铝饱和度高，化肥通过淋溶损失过程就更为突出。
