iridium
铱
常用释义
英音[ ɪˈrɪdiəm ]
美音[ ɪˈrɪdiəm ]
基本释义
- n. [化学] 铱（Ir）
例句
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1·This iridium anomaly offers strong support for the Alvarez hypothesis even though no asteroid itself has ever been discovered.这一铱异常为阿尔瓦雷斯假说提供了强有力的支持，尽管小行星本身从未被发现。
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2·Iridium occurs in meteorites and volcanic material, but in the latter case it is accompanied by elevated levels of nickel and chromium.铱存在于陨石和火山物质中，但在火山物质中同时包含高浓度的镍和铬。
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3·They had found, accidentally, that a rare metal, iridium, suddenly became very abundant exactly at the boundary and then slowly fell away.他们偶然发现一种稀有金属铱的含量在边界处突然变得很丰富，然后又慢慢地消失了。
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4·This sediment layer is enriched in the rare metal iridium and other elements that are relatively abundant in a meteorite but very rare in the crust of Earth.这一沉积层富含稀有金属铱，以及其他在陨石中较丰富而在地壳中十分罕见的元素。
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5·Debris thrown into the atmosphere by an asteroid collision would presumably contain large amounts of iridium, and atmospheric currents would carry this material all over the globe.小行星碰撞后的碎片可能会含有大量的铱，而大气洋流会把这些物质带到全球各地。
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6·An iridium-enriched sediment layer and a large impact crater in the Yucatn provide evidence that a large meteorite struck Earth about 65 million years ago.尤卡坦半岛上富含铱的沉积层和一个巨大的陨石坑提供了证据，证明了约6500万年前，一颗大型陨石撞击了地球。
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7·They're also seeking a cheaper catalyst than iridium.他们也在寻找一种比铱更便宜的催化剂。
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8·Indeed, two iridium layers have been found in some places.事实上，在某些地方发现了两个铱岩层。
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9·Indeed, two iridium layers have been found in some places.确实，有些地方发现了有两个铱层。
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10·By the way, I like it very much, "Iridium" that the marketing program.顺便说一句，我非常喜欢“铱星计划”的那个营销方案。