?? ???????????50?????????????
????:1?????pxc027:?????????
2??????????
3???????
4?????????
5???????
??????????????????????????????6?????????14?????????? (??????? ??????????? ???????????????????????)6????????????14???10??????20?????????????,?????????????50??????????,?????,???????????????????????
????????????116???,?8?????,???????1.41????,?808???????????,?,?????????????????,???
????50??14??????????????????????50?59????????????????17.2?????????????????????10?,?C60?,????6000??????????????,??????????
?,??,???????,?????????????,??????????????“????????????”????????????????????,???????????????????????,???
?,????????????????,???????,?????????????????
?????????“????”??,?(????????????)?????,????????????,???????????????,????????,???(?)
???:??