In this paper a method of measuring differential surface photovoltage spectrum with liquid probe has been reported.
本文报导了一种液体探针表面光电压微分谱测量方法。
After analyzing the spectrum of a group of signals, non-polar differential exponent pulse signal was selected as carrier wave, which can separate therapy threshold and ache threshold.
通过对载波信号的频谱分析，提出了一种能分离治疗阈值与疼痛阈值的无极性指数脉冲。
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