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1.???50????
2.??40?????????
3.????????
4.??
5.???
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2 ?40???????2??79/?P-R0.14sQRS?0.09s2P-QRS-T???35791113P-QRS-T??????????????T???2 ? ??????????????PP????PP??????????????????????????????????32??Schamroth???P-P??P-P????????P-P??32???1?IIP1 P3P4 P7V5P2 P5P6 P7P-P???2??????P-P?32??S-S?0.50sP-P?0.72s?S-P??0.22s???????

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L???????????????????????????????????????????? ????????????? ???????????????????????????60100????????????? ??????????????????????????????????????????????????? ????????????????????????????? ????????????? ???????? ? ???????????? 1)???????????????????????????????????????????
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1PavfIII????AVR??????????????
2PQRS??0.12S.(P??QRS ???????????????0.12S)
??????100~60??100~150???60~40?
????75??0.8S??????0.12S????