搜索结果: 1-2 共查到“地球科学总论 solve”相关记录2条 . 查询时间(0.046 秒)
Lunar samples solve mystery of the moon's supposed magnetic shield
lunar magnetic field magnetization lunar soil
2021/8/9
Tests of glass samples gathered on Apollo missions show magnetization may result from impacts of objects like meteors, not as a result of magnetization from the presence of a magnetic shield.
![](http://www.firstlight.cn/upload/imgfile/200912/10/20091210141620.jpg)
Scientists to Map Out Earth's Soil--New tool will help explain and solve world’s greatest environmental threats(图)
Earth's Soil world’s greatest environmental threats
2009/12/10
New York, February 17, 2009 — Some of the answers to the world’s greatest challenges -- such as climate change, food security, and water scarcity -- lie right beneath our feet. Responding to these and...