...土壤矿质氮素随地表径流流失和入渗的影响,初步探讨了降雨-地表径流-土壤矿质氮素的有效作用深度(Effective Depth of Interaction,EDI),分别用反推法和拐点法确定了不施肥试验和施肥试验时的土壤矿质氮素EDI.
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深度净化中将物化与生化作用相结合，不但能有效地去除悬浮颗粒，而且能进一步去除溶解性有机物。
The combination of biochemical action with physicochemical action in deep purification will remove not only suspended particulate efficiently but also soluble organic matters.
另外，充氢能够增加块体非晶合金材料的原子平均最近邻距离和有效作用势深度。
In addition, the average first-neighbour distance and the depth of effective pair potential can be increased after hydrogen charging.
以问题空间上启发值的分布为启发函数的特征来分析迭代延伸A* （IDA~** ）的时间复杂度，使启发函数的作用相当于减小有效的搜索深度。
The running time of iterative-deepening-A~*(IDA~*) algorithm is analyzed with heuristic function of the problem space and the effect of the function is to reduce the actual search depth.
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