... 空穴-粒子相互作用 hole-particle interaction; 空穴密度 hole density; 空穴浓度 hole concentration; ...
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基极中空穴的密度小于发射极和集电极中自由电子的密度。
The density of holes in the base is less than the density of free electrons in the emitter and collector .
观察到轻、重空穴对应的激子吸收峰（LH和HH）及台阶状态密度。
The exciton absorption resonaces (HH and LH) and step accumu-tive density Of state have been observed.
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。
When the maximum radius approaches to the minimum, the active nucleation sites density decreases and the nucleation boiling is restrained.
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