??????“????”????????

??

????????????????2??????21??? (?????? ???????????????????)????????????????????,?,??????????????????21?????????????????,???????????,?????????,?????????,?“????”??????,????

??“?????????”?,???(??)

?2????H????????,????“??”????????????????????“????????????”?????????????????????????,?????????????????????????????????????????????,??????????????,??“???”??????????????????,?????????????????????????????????

???????,???????????,????????????????“??????????”?????????????????????,???????????????????????????????????????????????,????1??????????,?360°???????????????????????,??????,???????????????,???

???????,“????????”??????,?,??,?????????????????(???????????)

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

?????????

???????????“????”?????????????

????????