The accuracy of the future international celestial referenceframe obtained from astrometric satellites: SIM and GAIA are given.
介绍由天体测量卫星GAIA和SIM给出的天球参考架可能逵到的精度。
2
Because they can some how get into the different frame of reference, therefore, see the future.
因为他们可以有办法转到另外一个参考系统﹐所以就看到了未来。
3
In final, Grouting Steel Pile wall's marked effect on the landslide was description, and design of a certain frame of reference was constructed for the future.