?? ?????????????????
????:1?????????:?????????
2????????
3?????????
4?????????
5??????????
?????12????????????????????1??????????????? (????? ?????)??????1????????,???,?????164??,?638500???????????(??????????13.5?????????????)?
????????
???46??????????????????????,??,??164??,?37?????,???55?,???72?????????
?1978????,46??????????????????????,?,???,?????????????????,???3100????????(????????????????????????????650??)?
????????,????????(?????????????????????????????) ???:???