1. The geospace, which includes the upper atmosphere, ionosphere and magnetosphere, is the most important region of human space activities.
地球空间包括高层大气、电离层和磁层，是人类空间活动的最主要的区域。
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2. Relative plate motion can not demonstrate the motion velocity of individual plate, while absolute plate motion can show the motion velocity in the stationary geospace.
相对板块运动不能表明板块各自的运动速度，绝对板块运动才能表明板块在不动的地球空间中的运动速度。
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3. Relative plate motion can not demonstrate the motion velocity of individual plate, while absolute plate motion can show the motion velocity in the stationary geospace.
