1/55,2/55,3/55,4/55,5/55,第一宇宙速度,第二宇宙速度,第三宇宙速度,大小：,km/s,大小：,km/s,大小：,km/s,也叫围绕速度，是人造卫星在地面附近绕地球做匀速圆周运动速度,也叫脱离速度，此时，卫星会摆脱地球引力，成为太阳人造行星或飞到其它行星上去,也叫逃逸速度，抵达这一速度物体将会摆脱太阳引力，飞出太阳系,7.9,11.2,16.7,6/55,7/55,8/55,9/55,10/55,11/55,12/55,13/55,14/55,15/55,16/55,17/55,18/55,19/55,20/55,21/55,22/55,23/55,24/55,25/55,26/55,27/55,28/55,29/55,30/55,31/55,32/55,33/55,34/55,35/55,36/55,37/55,38/55,39/55,40/55,41/55,42/55,43/55,44/55,45/55,46/55,47/55,48/55,49/55,50/55,51/55,52/55,53/55,54/55,55/55,
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