?? ?????????????? ??????
????:1?????????:?????????????
2???????????
3?????????????
4???????vx
5??????150???
?2???3?? (? ???)??2????3??,???????????,???,????
????????????,2???2??????,????????(?????101°15'????????????30°5')???????????????,??,????????????????800??
??,??????,????????,???????????????????????(?)
???????????????????????:??????