搜索结果: 1-1 共查到“地球化学 magnetic field”相关记录1条 . 查询时间(0.109 秒)
New research provides evidence of strong early magnetic field around Earth（图）
New research evidence strong early magnetic field around Earth
2020/2/20
Deep within Earth, swirling liquid iron generates our planet's protective magnetic field. This magnetic field is invisible but is vital for life on Earth's surface: It shields the planet from harmful ...