electron density decreases 电子密度降低
The population density decreases with the increase of diameter class.
种群密度随径级增大而减小。
The DBH, volume, crown breadth and the growth of shoots increase obviously as the density decreases.
胸径、材积、冠幅、新梢生长量随造林密度减小显著增大。
When the maximum radius approaches to the minimum, the active nucleation sites density decreases and the nucleation boiling is restrained.
当最大空穴半径趋近于最小空穴半径时，活化核心密度减小，核态沸腾受到抑制。
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