| 释义 |
iridium
英音 [ ɪˈrɪdiəm ]
美音 [ ɪˈrɪdiəm ]
释义
n. [化学] 铱（Ir）
例句
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。
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。
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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