??????????,??,???????????????,????????????
????2??????,?????????????,?????????????????????????,2??????????????
????,??,??,????????,??????,?????????????
??,??14~15?????????????????,???????,???????????????????????????????????????,18~20??,?????????,?????
??,??????????????????,?????
?????????????,???????????????????
?????????,???,???????15~16???????
?????????????????,?????????????15????????,??????????????15°C,????????5~8?,???
???????,?????????17?????????16?,??????,?????????????????????????????7~8??????????
?????,15???????????,?????????????,???????????????16????,???,????????15????????,????????????????????20????????????
?,??????????????4?????????????10°C???????,16??17°C;??????15??????????26????,?????????10???,?????????????
??????15???????,??,???
??????,???????????????????:????????
????,????,????????????????????????,???????;???????????????,??,?????
????????????,?????,???????????????????,??????????????,?????????????,????????????,????,?????
???????????:???????
??????!??????????????
??????????????:??????
?????:??????????????
????:???????????????????
?????????????????????
?????:??????1???2280?
????PPP?????????:????????
6?11??????????I:????VS???
??????????????????????
????????????????
?????????????????????
???????????6.1?????1?5?
??????????????????7??
??!???????????????????
???????????????????
????“??”??90??????????
????“??”??90??????????
???:?????????????????
??????????????????????
?????«??????»???????
????????????100???
«??·????????»???????
?????????????:????????
????????????:????????
?????????:4???????????