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

2???????????

3????????????

4??????

5???????

???????????8?23?? (???? ????????)??????????????????,??“??????3D”????????????????????????23???????????,“??3D”?????????????3D?,?????????????????????????????,???????,????????????????????????,???,??,???

“??????????????????,?????????????,??,??????????,????”???

?,??,????,?????,?????????“?????????????3D”??????????“??????3D”????????????,??????????,??

8???????????????23??,????? ? ??????

?????????????“??3D”?????,?????????????????????,??,??????????????????????,??????????????,??????????,???????????“????????????????”??????,3D?????????????,???,????????????,??????,??????????,??(??????????????)

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