结论缺氧可引起大鼠肺组织面积密度增加，肺泡有效气体交换面积减少。
Conclusions Hypoxia can induce increase in pulmonary tissue area density and decrease in aerial exchange area in alveoli.
从辐射全交换面积的概念出发，推导了封闭空间边界为灰体，介质为非灰气体的辐射全交换面积计算式。
Based on the original conception of total radiant exchange area, the total radiant exchange areas for non-gray medium with gray enclosure are derived.
从辐射全交换面积的概念出发，推导了封闭空间边界为灰体，介质为非灰气体的辐射全交换面积计算式。
Based on the original conception of total radiant exchange area, the total radiant exchange areas for non-gray medium with gray enclosure are derived.
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