通过更周密的探查，他发现那些岩石中含有黄金。
He discovered, on closer inspection, that the rocks contained gold.
维尔博尔德和他的同事们集中研究了古代格陵兰岩石里钨的同位素，它们同黄金一样，也具有粘接铁的吸引力。
Willbold and his colleagues concentrated on investigating the ancient Greenland rocks for isotopes of tungsten, a metal that, like gold, has an affinity for bonding with iron.
黄金蕴藏在岩石与溪流中。
但黄金的岩石，我们没有一个房地产市场？
研究人员通过分析地球上最古老的岩石得出结论：黄金是地球形成很久以后由陨石雨带来的。
The researchers, who looked at some of the oldest rocks on Earth, concluded that gold was delivered by meteorites long after the Earth's formation.
从岩石中取得黄金需要大型的掘土机和粉碎机。
Huge digging machines were needed and crushers to get the gold from the rock.
从岩石中取得黄金需要大型的掘土机和粉碎机。
Huge digging machines were needed and crushers to get the gold from the rock.
应用推荐