The probes have also made the scientists think that under its surface, Europa has a rocky core giving off volcanic heat.
这些探测器还让科学家们认为，在木卫二的表面之下，有一个释放出火山的热量的岩石内核。
As for that ancient moon's rocky core?
至于那颗古老卫星的岩石内核呢？
The nucleus might have a small rocky core.
彗核内可能有一个小的石质核心。
Neptune probably has a rocky core, but composition is unknown.
海王星，可能有一个多岩石的核心，但成分不明。
Such a big planet with a rocky core and a fluffy gaseous envelope probably can't support life as we know it.
如此大的一颗行星，有岩石地核以及蓬松的气体层包覆，可能不会维持我们所知的生命。
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。
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。 。
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 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。
As for that ancient moon's rocky core? Saturn probably swallowed it up. Leaving Titan unique. And leaving scientists with a puzzle they finally may have solved.
至于那颗古老卫星的岩石内核呢？大概是土星将它吞噬了。只留下独一无二的土卫六，并留给科学家一个最终可能解开的谜题。
Dr Marcy suspects that his new discovery, which has about 45 times the mass of the Earth, is composed of a rocky core surrounded by a thick envelope of hydrogen and helium gas.
马西博士怀疑，他的这个拥有地球质量四十五倍的新发现星体有一个岩层核心构成，并被一层很厚实的氢气与氦气层笼罩。
A titanic impact could have stripped away a portion of its rocky mantle, leaving behind a metallic core whose density is out of proportion with the original ratio of rock to metal.
超大碰撞可能剥去了水星的一部分岩石地幔，留下了一个金属核心，其密度与原来的岩石与金属的比例相比大得不成比例。
The evidence suggests it has a nickel-iron core like the Earth’s, overlain by a rocky mantle.
有证据表明它的地核也象地球一样由镍、铁元素组成，表面由岩石地幔覆盖。
These, together with reasonable guesses about the Earth's overall composition, have been used to put together the familiar model of an iron core, a rocky mantle and a thin crust.
这些连同有关地球总体构成的合理猜想，一起形成了我们熟悉的地球模型——铁质地核，岩石地幔和较薄的地壳。
The evidence suggests it has a nickel-iron core like the Earth's, overlain by a rocky mantle.
证据表明灶神星有着和地球一样被岩石地幔覆盖的镍铁地核。
That core, calculation suggests, takes up around 60% of the planet's volume, making it far larger than the cores of Venus, Earth and Mars, the solar system's other rocky planets.
由计算结果推测，地核占整个星球60%的体积，远比太阳系其他岩制行星，如金星，地球，火星中的比重大。
At their distances from the star, the rocky planetary core would have taken so long to form that the gaseous disk would have dissipated before the core could attract the gas.
就它们与恒星的距离而言，其石质行星核恐怕需要极其长的成型时间，以至于在星核能够俘获气体前周围的气态盘恐怕就已经消散殆尽了。
The evidence suggests it has a nickel-iron core like the Earth's, overlain by a rocky mantle.
有证据表明它的地核也象地球一样由镍、铁元素组成，表面由岩石地幔覆盖。
The Colorado Rocky Mountain school program has three main components. Academics are at the core of a CRMS education and are crucial to serving the mission of the school.
科罗拉多洛基山中学有三个重要组成部分，学术部分是学校教育的核心。
The Colorado Rocky Mountain school program has three main components. Academics are at the core of a CRMS education and are crucial to serving the mission of the school.
科罗拉多洛基山中学有三个重要组成部分，学术部分是学校教育的核心。
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