标准导联单极肢体导联单极和加压肢体导联的关系胸导联特殊胸导联监护电极及其安放各心电矢量之间的关系简化导联--EASI导联系统心肌极化、复极化过程和心肌向量心电向量和投影Frank导联体系心电向量图爱氏(Einthoven)三角及心电投影12导联标准心电图心电图机心电图机原理Blockdiagramofanelectrocardiograph导联线导联线的颜色标准AnalogMultiplexer/DemutiplexerCD4051Single8-ChannelAnalogMultiplexer/DemultiplexerCD4052dual4-ChannelAnalogMultiplexer/DemultiplexerCD4053Triple2-ChannelAnalogMultiplexer/DemultiplexerVoltageinput,currentoutputCurrentinput,voltageoutputInputcircuitryandWilson’snetworkDeferentialamplifierVoltageamplifier&gainadjustment