?? ???????????3D??????
????:1?????200??????:????
2??????????
3???????
4??????200??
5???95?????
??????12???????24?? (????????? ????)????24??,?????????“??????????3D??????????????”???????????????3D????????,????????
??“????????3D??????????????”???(??)???????3D??,???????24??,????????;???16?????????????????,??????????????????????????,???????,?????????????????????
?????????,??????3D????????????????3D??,??????20???????,?????????????????,????????????????????????
“??????,????????????????,???????????30%?????????,?????,??????????????????;???????,?????,??????????????70%????????????,??????????????????????????????????????????????????,????????????????”????????????????
???????????????,????????????“???????,?????????????????????????????,???????????????????,??,???????????????????”(???)
????:????????????????