?? ???????????????????
????:1??????:???????
2????????
3?????????
4?????
5?9394?????
??????????“?”??????????????,???????????(NASA)??12??17??????,???????????3?????????????????????,NASA??????????,?????????2???(SpaceX)???“??????”????????
??????????????????,NASA?????2?,?,??????SpaceX???????????????????,???3??
?,?????????????????,NASA??????SpaceX????????,??
???,??6????????????6??,???????????????“????”?????,?????????6????????????????????14???????????,?,????????8??,NASA????,???????????????????????????????????“???????????????”?2???????(SpaceX)?“??”????????(???? ??????)
?????????:??????