????:2024-08-08 10:06:57 ??:????
????:?????????:??929598????
?????????8???7?(?? ?????????????????)??????????????????????????,7????????,?????????????????????,7???2?????,???20000??????????(??????4??),??2.2??????????????(??????????????????1.58???????????)?
???8??7?????“Geological evidence reveals a staircase pattern in Earth’s rotational deceleration evolution(?)”?????????????«??»(PNAS)????????????????????
???????????????????????,??,?????????????
?????????????????????????????,?????,???????????????????????????????????????????
????????????????????????,????????????Jacques Laskar????????????2?????????,???????????????????????????????????????7??????2??????????,???,???
?????????????,???????7??????2??????????????????????,???
???????????????,????????,???????,?????????????????
?????????????????????????????????,?????????????????????(????????????) ???:????????
????