photoelectric potentiometer
... 光电电势计 photoelectric potentiometer; 光电电位计 photoelectric potentiometer; 光电电位器 photopotentiometer; ...
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短语
精密光电电位计
precision photo-electric potentiometer
光电平衡电位计
[电子]
photoelectrically balanced potentiometer
光电平滑线式电位计
photoelectrically balanced slide wire potentiometer