slide wire potentiometer
双滑线电位计 double slide-wire potentiometer
滑线式电位计 [电] slide wire potentiometer
光电平滑线式电位计 photoelectrically balanced slide wire potentiometer
提出滑线式电位差计实验存在误差问题并加以分析，给出了提高精确度的方法。
This article bring up error questions exist in experiment of potential difference meter of gliding line style, analysis the reason, methods of increasing accuracy was given.
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