地球防卫是由kasurdev开发的适用于 Android 1.5 及以上版本的休闲小游戏。
作为科学家，坚持不懈地关注星空，跟踪记录那些近地星，这项工作的重要性远远不限于对地球的防卫。
As scientists continue to watch the skies, it's important to realize that charting NEOs is far from merely a matter of planetary defense.
太阳在地球附近的电磁场已经偏向南方，在地球抵御太阳风的磁场防卫层上打开了一道口子。
The sun's magnetic field near Earth has tipped south, opening a crack in Earth's magnetic defenses against the solar wind.
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