conductivity type flow meter 电导式流量计
comparative type thermal conductivity instrument 热导率比测仪
contact type conductivity meter [电] 接触式电导仪
p-type conductivity P型导电性
The light collection region is also doped to have the second conductivity type.
光收集区域也被掺杂为具有第二导电类型。
The invention discloses a light-emitting element, including a first conductivity type semiconductor layer;
一种发光元件，包括：第一导电型半导体层；
The second epitaxial layer is disposed over the collector layer and doped to have the first conductivity type.
第二外延层被布置在收集器层上并且被掺杂为具有第一导电类型。
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