???
???N???????????PQRS??PP??????
?
??
???
???,?????
???????302
“???” 的相关文章
?,?????
??????????1.8s?????????
??k????1.2s????
??k????1.2s????
????
1.???50???? 2.??40????????? 3.???????? 4.?? 5.??? ?? 1.?? ???. 2.?????? 1.???50. 2.???40. 1.??60????? 2.???50????? 3.??????
??????????????
??????????????
??
????(???????
?
L???????????????????????????????????????????? ????????????? ???????????????????????????60100????????????? ??????????????????????????????????????????????????? ????????????????????????????? ????????????? ???????? ? ???????????? 1)???????????????????????????????????????????
(2)??? ??????...
?
L???????????????????????????????????????????? ????????????? ???????????????????????????60100????????????? ??????????????????????????????????????????????????? ????????????????????????????? ????????????? ???????? ? ???????????? 1)???????????????????????????????????????????
(2)??? ??????...
??
???,:1? 2? 3? 4? ??,?? ?????.
???
??
???
?
?????????????????????????0.12S??????????????
???
?
1PavfIII????AVR??????????????
2PQRS??0.12S.(P??QRS ???????????????0.12S)
??????100~60??100~150???60~40?
????75??0.8S??????0.12S????
???
??
???
?
?????????????????????????0.12S??????????????
???
?
1PavfIII????AVR??????????????
2PQRS??0.12S.(P??QRS ???????????????0.12S)
??????100~60??100~150???60~40?
????75??0.8S??????0.12S????
?
??????
??????
z????????
w
?
????
???
?????
?????
???
??????
z????????
w
?
????
???
?????
?????
???