impurity band
[电] 杂质能带
impurity defect
[化] 杂质缺陷
impurity density
[电] 杂质密度
impurity distribution
[电] 杂质分布
impurity gradient
[电] 杂质梯度
impurity level
[电] 杂质能阶
impurity levels
impurity profile
[电] 杂质剖面
impurity scattering
[电] 杂质散播
impurity semicomductor
[电] 杂质半导体
impurity semiconductor
