必须谨慎选择绝缘方法和使用保护电位，必须使用输入偏置电流为微微安级的放大器。
You must carefully choose insulation and apply guarding potentials, and you must use an amplifier with picoampere input-bias currents.
从被淹没在数十微伏的自发脑电背景中单次提取微伏级的视觉诱发电位，是脑-计算机接口的核心问题之一。
One of the key issues in a brain computer interface is to single-trial estimate the visual evoked potentials which embedded in ongoing spontaneous Electroencephalogram(EEG) background.
为了提高晚电位分析结果的精确度，提高信号噪声比，在HOLTER记录和分析时，采用了“二级筛选”的设计方法。
In order to improve the signal noise ratio and the precision of the analysis, a "two-level sifting" is processed in recording and analyzing VLP by HOLTER.
管路安装由单级X射线管，地电位的冷却性阳极和高电压插座组成。
The tube assembly consists of an Unipolar X-Ray tube with cooled anode at ground potential and a high voltage receptacle socket.
测得的等离子体电位轴向分布表明，该装置中能够建立起负电位轴对称串级镜约束位形；
The measured axial potential profile shows that the axisymmetric negative plasma potential tandem mirror confinement configuration has been established;
测得的等离子体电位轴向分布表明，该装置中能够建立起负电位轴对称串级镜约束位形；
The measured axial potential profile shows that the axisymmetric negative plasma potential tandem mirror confinement configuration has been established;
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