系统设计采用主动电极提取信号，而后将其送入信号的变换与处理部分。
The EEG signal is collected with an electrode, and then is sent to transforming and processing part of the system.
像素电极通过主动元件电性连接至对应的扫描配线及数据配线。
The pixel electrodes are electrically connected with the corresponding scanning wires and data wires by the active components.
目的比较主动固定电极（螺旋电极）与被动固定电极术后各参数的变化。
Objective To compare the regularity changes of parameters of active fixation and inactive fixation pacing leads after operation.
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