实验结果表明，在一定范围内，随着铂炭复合电极中铂含量的增加，其交换电流密度也随之增大。
The results show that the exchange electrical current density augment with the increase of platinum content of the compound electrode in a certain content range.
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.
在夫兰克-赫兹实验中，温度影响着汞原子的饱和密度，当然就影响了汞原子与电子之间的能量交换。
In the F-H experiment, the temperature affects mercury's saturated density, so it's natural to affect the energy exchange between mercury and electron.
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