According to the equatorial coodinate position of the galactic centre being observed by astronomist , it is determined that the position of solar system on galactic orbit plane , the time of the solar system and the earth revolution around the galactic centre for a circle , may be 220 ma 以目前太阳系在银道面上的位置为起点,按照时间倒退,顺时针逆转做图,确定过去不同地质年代太阳系在银道面上的位置。
时间: time; hour倒退: go backwards; fall back; bac ...长时间倒飞: extended inverted flight时间倒流: turn back time时间若倒退: if time reversed但愿我能让时间倒流: wish i could turn back the hands of time我希望我能让时间倒转: i wish that i could turn back time倒退: go backwards; fall back; backward going; backward motion; backset; retroversion; retrogression; retrogradation 倒退几步 back [move back] several steps; 反对倒退 oppose retrogression; 历史大倒退 great historical retrogression; 任何要使历史倒退的企图都是注定要失败的。 any attempt to set back the wheel of history is doomed to failure.; 倒退抑制 reactive inhibition; 倒退装置 backward gear臂间倒位: pericentric inversion中间倒位: intercalary inversion挫折,倒退: setback倒退,支持: back up倒退,退化: retrogress倒退的: backward; reactionary; retral; retrograde; retrogressive; reversional; reversionary后退,倒退: retrograd使倒退: set…back支持;倒退: back up背部,后面,倒退,衬里: bk back倒退,后退;支持,鼓励: back up倒退,支持物: backing倒退的适应: regressive adaptation倒退叠绕组: retrogressive lap winding倒退飞行: move backward倒退华尔兹: waltzing back; watzing back倒退滑行: backing up