regolith

1. The results for the first wet chemistry test suggested that the martian regolith contained several soluble minerals necessary for life , including potassium , magnesium and chloride .

第一次湿化学分析结果表明，火星风化层中含有好几种生命所必需的可溶矿物质，包括钾、镁和氯化物。

2. Last week , nasa and other agencies announced results from instruments aboard three different spacecraft which all indicate that there is water present in the surface soil , or regolith , of the moon .

上周，美国航天局与一些其他机构宣布3架不同的航天飞机上的仪器均显示，月球地表层或风化层上存在水的迹象。

3. The lunar soil ( regolith ) contains iron , aluminum , calcium , silicon , titanium , and oxygen , as well as trace amounts of lighter elements such as carbon , sulfur , and nitrogen .

月球的土壤（风化层）含有铁、铝、钙、硅、钛和氧等元素，此外还发现有大量较轻元素如碳、硫和氮等。

4. Agglutinates formed when micrometeorites hit the lunar surface and melted a bit of the powdery regolith . Tiny intact grains of soil were preserved within , like insects in amber .

当微小的陨石撞击月球表面时，少许粉状浮土会融化形成这种凝集物，把微小完整的土壤粒包裹在里面，就像昆虫琥珀一样。

5. Deimos has a smooth surface due to a blanket of fragmental rock or regolith , except for the most recent impact craters .

火卫二因碎屑岩或风华层的覆盖而表面光滑，除了最近的撞击坑。

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