摘要:现象:开机即出现显示屏指示'Ⅱ'位,记录心电波显示'Ⅱ'导波形.按压'↓'键,显示'Ⅲ',心电波显示'Ⅲ'导波形,继续按压'↓'键相继重复'Ⅱ'、'Ⅲ'转aViF'、'V1'……重复等.总之手动操作和自动操作都是依以下同一种方式动作,描记出的心电波形与指示导联相吻合;即:'Ⅱ'→'Ⅲ'→'Ⅱ'→'Ⅲ'→'aVF'→'V1'→'aVF'→'V1'→'V4'→'V5'→'V4'→'V5'→无显示→'Ⅱ'停止.再操作继而重复以上过程.
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