It may have formed from an unusually iron-rich part of the primordial cloud that gave birth to all the planets, or it may have had a normal rocky shell that got blasted or fried off.
有可能是原始星云大爆炸形成各种行星的时候，刚好由一块比较特殊的含铁量丰富的星云形成的，也有可能它的地壳表面原来也是石头，后来被太阳烤焦后变成的。
So Saturn might once have had more-one of which could have had a rocky core surrounded by a shell of water ice.
因此，土星也许曾经拥有多个颗卫星，其中一颗可能是冰层包裹着岩石内核的样子。
These were called 'Rococo', a taste that sprang from the French word 'Rocaille' which literally meant rocky or shell encrusted and which flourished between 1730 and 1780.
“洛可可”一词来源于法国的单词“Rocaille”，意思是用石子和贝壳做的装饰。从1730年到1780年洛可可风格风靡一时。
So Saturn might once have had more-one of which could have had a rocky core surrounded by a shell of water ice.
所以土星也许曾经有过多个卫星-其中一个可能是由水冰外壳包裹着岩石核心构成。
So Saturn might once have had more—one of which could have had a rocky core surroundedby a shell of water ice.
所以土星也许曾经有过多个卫星-其中一个可能是由水冰外壳包裹着岩石核心构成。 。
It's shaking of the ground caused by the sudden breaking and shifting of large sections of Earth's rocky ourter shell.
它是由地球岩层的大板块突然断裂和移动而引起的地面晃动。
An earthquake is a shaking of the ground caused by the sudden breaking_and_shifting of large sections of earth's rocky outer shell.
地震是震动地面由突然打破和转移地球的岩石外壳的大部分造成。
So Saturn might once have had more—one of which could have had a rocky core surrounded by a shell of water ice.
因此，土星可能曾经也有更多的卫星，而且其中一颗应该还有岩石内核，外面覆盖一层水冰外壳。
An earthquake is a shaking of the ground caused by the sudden breaking and shifting of large sections of earth's rocky outer shell.
地震是震动地面造成的破坏和突然变化的很大一部分地球的岩石外壳。
An earthquake is a shaking of the ground caused by the sudden breaking and shifting of large sections of earth's rocky outer shell.
地震是震动地面造成的破坏和突然变化的很大一部分地球的岩石外壳。
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