??????????????
????????
?????????????????????磬????????????????????????????????????????????????????????????λ????? m ????????? cm ????????? mm ??????????????У????????磨?壩???????????????????????λ??
???????????????
???????GDP???????????????????2012??????GDP???????????130????????????GDP????????????????????????????????0.7????????????????????????0.5????GDP????1?????????????????0.5???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????7-8.5?????????????????????????????????????????????????????????
??????????????
14??2000??8000 35??
14??2000??8000 70??
8??2000??8000 21??
8??2000??8000 70??
8??2000??8000 32??
8??2000??8000 70??
10??2000??8000 21??
????11??13??????8*1.8*7??q345qd?????????????????????
