near-surface density

基本解释

Inside the screen-house, the vapor density around canopy was higher than those near ground surface, and the converse temperature distribution occurred.
网室内冠层附近水汽密度高于近地面处的水汽密度，且出现逆温分布。
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The surface morphologies in different regions are obviously non-uniform, and the material density of the aggregates near the sample edge is larger than that in the centre region of the sample.
在样品的边缘与中心区域形貌不一致，样品边缘区域的凝聚体的数密度要大于中心区域的数值。
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