光电英语词汇
三能级系统 three-level system三模激光器 three-mode laser三模受激发射 three-mode stimulated emission三相交流电源 three-phase a.c. voltage source三相交流电源 three-phase a.c. voltage supply三相碳精灯 three-phase carbon arc lamp三相感应 three-phase induction三相感应电动机 three-phase induction motor三速齿轮，三档齿轮 three-speed gear三头螺纹 three-start screw三色带摄影机 three-strip colo[u]r camera三视像管摄像机 three-vidicon camera三通旋塞 three-way cock三通管 three-way pipe三线测螺纹法 three-wire measurement界值 threshold (1)阈(2)阈值条件 threshold condition阈电流 threshold current阈电流密度 threshold current density阈值简关 threshold degeneracy阈值检测 threshold detection阈值探测器 threshold detector阈元件 threshold element阈能 threshold energy检波阈，探测阈 threshold of detectability语际翻译 版权所有
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