据科学家称，月球近地端含有更多的克里普矿物，稀有地球元素钾，还有磷。
The nearside also has much more kreep-potassium, rare-earth elements, and phosphorus-according to scientists.
在这样的情况下，地球大气层中稀有同位素所含的特征或许可以仿制常规火星甲烷所预计的特性。
In some circumstances, a feature caused by a rare isotope in the Earth's atmosphere might mimic the expected feature from normal methane on Mars.
从地球来的殖民者与潘多拉星球的土著人为了争夺一处稀有而强大的矿藏而交战。
Colonists from the planet Earth do battle with the native inhabitants of a moon named Pandora over the right to mine a rare and powerful mineral.
由詹姆斯•卡梅隆执导的这部影片以未来地球资源消耗殆尽为背景，讲述了地球上的一家公司试图在外星球开采稀有矿产的故事。
Set in the future when Earth's resources have been depleted, director James Cameron's film tells the story of a corporation trying to mine a rare mineral.
我终于意识到，自己已经在一群短吻海豚中间，这是地球上最稀有的物种之一。
Then a couple more to the left, and more to the right, before I finally realised that I was at the centre of a pod of Irrawaddy river dolphins, one of the rarest species on the planet.
在太空建设工厂生产稀有水晶或者spinfabulousmetal这些在严重污染的地球无法生产的东西，终究只不是梦想罢了。
Nothing came of the dream that men would build factories in space to grow exotic crystals or spin fabulous metals that could not be made on the gravity-polluted Earth.
铱在地球上很稀有，但是在宇宙空间中却很常见。Alvare z提出一个巨大的行星曾经撞击地球，造成了物种的突然减少。
Iridium is rare on Earth but common in space, and the Alvarezes proposed that a giant asteroid had hit the Earth, producing the sudden decline in species.
所有这些因素使得格利泽 581 g（译注：原文为格利泽，应是格利泽 581 g之误）最有希望成为地球类行星并不稀有的明证。
All of these factors add up to make Gliese the most promising evidence yet that Earth-like planets may not be such a rarity after all.
彼得高尔克：这个物种极其稀有，地球上只有两个地方能够找到北半球和南半球。
Peter Gaulke: This species is extremely rare and can only be found in two places on earth: Northern and Southern Hemisphere.
彼得？高尔克：这个物种极其稀有，地球上只有两个地方能够找到——北半球和南半球。
Peter Gaulke: This species is extremely rare and can only be found in two places on earth: Northern and Southern Hemisphere.
地球不同圈层的稀有气体同位素具有不同的特征同位素比值。
Rare gases in different spheres of the earth have different characteristic isotopic ratios.
由詹姆斯·卡梅隆执导的这部影片以未来地球资源消耗殆尽为背景，讲述了地球上的一家公司试图在外星球开采稀有矿产的故事。
Set in the future when Earth's resources have been depleted, director James Cameron's film tells the story trying to mine a rare mineral.
地球上最稀有的元素砹。
稀有气体同位素地球化学研究也在一定程度上揭示了牦牛坪轻稀土矿化与地幔过程之间存在着成因关系。
The rare gas isotope geochemical analyses also support that there is a genetic association between the light rare earth element mineralization and mantle processes.
二进制的稀有的地球氧化物为我们带来多种有趣的特性。
The binary rare earth oxides bring us a variety of interesting characteristics.
二进制的稀有的地球氧化物为我们带来多种有趣的特性。
The binary rare earth oxides bring us a variety of interesting characteristics.
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