????:1????????:????????????

2????????

3??????

4????????

5?????

???4??????,6????3?????????????????,?-??????,???????????,????????“??”,????????6?????????????????????6??????????

6????????????????????????4???????11?????????????,??????30??,??????????(????)50??,???,?????????,?1-2??

?,?????(???????????),????????????4-5????????6?5???????????????????,??????10?,?+6m/s?????????????,?????40???????????,????????,????????????????800??,??6?????????????,??????,??????6??

??????????????,?????????,??,????????????????800??,???,????????????,????????????500?????????????????,???,?1300?,?????35?(??)???23????

??,??????????6????????20?,??????,?????????500??????????,??,????,??7?????6????????“?????????”????“??”??????????????????(????????? ?? ??????????? ???)

???????:???????