??
??????QRS?PR??????
?? 2010-04-23 18:11 ??2???? ???,, ?
??? 2010-04-23 18:20 ???????QRS???????P--R????
??? 2010-04-23 18:41
????,?,?
?? 2010-04-23 20:46 ??QRS???
??? 2010-04-23 21:03 ?????????
?? 2010-04-23 21:07 ...
?? 2010-04-23 18:11 ??2???? ???,, ?
??? 2010-04-23 18:20 ???????QRS???????P--R????
??? 2010-04-23 18:41
????,?,?
?? 2010-04-23 20:46 ??QRS???
??? 2010-04-23 21:03 ?????????
?? 2010-04-23 21:07 ...
“??” 的相关文章
??
????????????????????????????????????
???????????????????????????????????????
???????????????????????????????????????
?
??????
??????????????????????????????????
?
1?????????????????
2???????
?,???..
??????????????????????????????????
?
1?????????????????
2???????
?,???..
??????
?????,P-R ??0.24s,??0.65%~1.1%,50 ??1.3%.
?,?????8.7%.???,?,?,,????,??,??P-R ?.
??P-R ????,??.?.
???????,????,????4%~15%,??.??,??????,?,.???,??????.????????,???.
?,?????8.7%.???,?,?,,????,??,??P-R ?.
??P-R ????,??.?.
???????,????,????4%~15%,??.??,??????,?,.???,??????.????????,???.
???
?????????????????????
???N??????
???N??????
?????
??????????????????????????????????????????????????????
?? 2010-11-30 22:22 ????
??? 2010-11-30 22:30 ?????????????????????????????????
40 ???????
?? 2010-11-30 22:22 ????
??? 2010-11-30 22:30 ?????????????????????????????????
40 ???????