“???????????????”??????

????:??????v:????????

????????????????8???2??? (????????? ???????????)????,“???????????????????”8????????????2????????????,??????????????????3D??????,?????????????????????????????

?,“?????????????”?,??3D??????????,?“???”????“???????????????????”?6????????28?????7?????????21?,???????????3??,??????

????,?????????????3D???????,???????????????????,????????????

8?2????????,“??????????????????????????”?????????????????? ????????????? ?????????????????

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

?,?????????????????????????,???,??????????,???

?????????????????????,??????2019?????,???????????????,?????????????????“???????????????????????”??????????????????,?????????????????,“??3D????,?????????????????????,?,??”????

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

?????????????????????????,??,??,??????,????????????????

?????????????????????????(????????)

?????:???