????

???N???????????PQRS??PP??????
?
??
???
???,?????
???????302

?????????????????????????????1?N1??????
1.???50????
2.??40?????????
3.????????
4.??
5.???
??
????????
??????
?????80?????????
??????

?????
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???????

     ???????????????????????1?N1?????????????????? ????????????????????????????????????????????????????
????????????
?
??
??
???
??
??
1.???50???
2.??40?????????
?
1.???50????
2.??40?????????
3.????????
4.??
5.???

??   2010-11-19 23:24 ...

????(???????
?
L???????????????????????????????????????????? ????????????? ???????????????????????????60100????????????? ??????????????????????????????????????????????????? ????????????????????????????? ????????????? ???????? ? ???????????? 1)???????????????????????????????????????????
(2)??? ??????...