rocky core

LHS 1140b, the mother of all super-Earths, is also believed to be rocky with an iron core... and to possibly have aliens.

作为所有超级地球之母，LHS1140b也被认为是一颗内核为金属的岩石行星，还有可能存在外星人。

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Other theorists propose that the Moon was ripped out of the Earth's rocky mantle by the Earth's collision with another large celestial body after much of the Earth's iron fell to its core.

其他的理论家提出，正在地球的大部分铁沉入到地核之后，由于地球取另一个庞大的天体发生碰碰，月亮便从地球那石量的地幔外撕裂开来而形成的。

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Karst rocky desertification is a kind of land desertification associated with fragile ecological geological background and human activities in karst region of Guizhou Province, China. The core of karst rocky desertification is human irrational land utilization which leads to land quality decreased, even deserted.

贵州省喀斯特地区石漠化是一种脆弱生态地质背景下与人类活动相关联的土地退化，石漠化的核心是人类对土地的不合理开发利用而导致土壤质量下降及至土地荒芜的过程。

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