iridium
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n. [化学] 铱（Ir）
n.
铱；
英英释义
iridium[ ai'ridiəm, i'ri- ]
n.a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
同义词：Iratomic number 77
双语例句
用作名词(n.)
May make the iridium using the osmium identical quota's iridium.
利用锇同一定量的铱可制成锇铱合金。
Indeed, two iridium layers have been found in some places.
确实，有些地方发现了有两个铱层。
权威例句
ACTIVATED IRIDIUM OXIDE ELECTRODES AND METHODS FOR THEIR FABRICATIONRhodium(I)- and iridium(I)-catalyzed hydroboration reactions: scope and synthetic applications
Synthesis and characterization of phosphorescent cyclometalated iridium complexes
Homoleptic cyclometalated iridium complexes with highly efficient red phosphorescence and application to organic light-emitting diode.
Electroluminescent iridium compounds with fluorinated phenylpyridines, phenylpyrimidines, and phenylquinolines and devices made with...
TRANSLOCATION OF ULTRAFINE INSOLUBLE IRIDIUM PARTICLES FROM LUNG EPITHELIUM TO EXTRAPULMONARY ORGANS IS SIZE DEPENDENT BUT VERY LOW
Light-induced water splitting with hematite: improved nanostructure and iridium oxide catalysis.
Synthesis and characterization of facial and meridional tris-cyclometalated iridium(III) complexes.
Highly phosphorescent bis-cyclometalated iridium complexes: synthesis, photophysical characterization, and use in organic light emit...
High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials
iridium (n.)
1804, Modern Latin, coined by its discoverer, English chemist Smithson Tennant (1761-1815) from Greek iris (genitive iridos) "rainbow;" so called for "the striking variety of colours which it gives while dissolving in marine acid" [Tennant]
1. Analyzing the fossils at this small site, they counted 52 distinct species just below the iridium layer.
他们分析了这个小地区的化石层，一共计算了在铱层下面的52个不同物种。
article.yeeyan.org
2. This story, though, raises the question of why there is but a single ejecta layer of iridium and shocked quartz in late Cretaceous rocks around the world.
不过，这一假设提出了个问题，在全球各地白垩纪晚期岩石中，只有单独的一层铱和冲击石英，这是为什么？
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3. In a laboratory vault outside Paris is a small cylinder of platinum–iridium alloy that serves as the standard for all mass measurements worldwide.
在巴黎郊外的一个实验室地下室中，有一个铂铱合金作的圆筒，这个圆筒就是作为世界上所有质量测量的标准。
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4. 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。
article.yeeyan.org
5. 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。
article.yeeyan.org
6. In a laboratory vault outside Paris is a small cylinder of platinum–iridium alloy that serves as the standard for all mass measurements worldwide.
在巴黎市外的一个实验室底下仓库里，有一个用铂-铱合金做成制成的小圆柱体，这就是全世界衡量重量的标准。
article.yeeyan.org
7. They’re also seeking a cheaper catalyst than iridium.
同时他们也在寻找比铱更便宜的催化剂。
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8. In rats, 20-nano-meter–diameter agglomerations of at least 100 radioactively labeled iridium particles entered the brain whether inhaled through the nose or pumped directly into the lungs.
大鼠体内，由至少100个放射性标记的铱粒子组成的直径20纳米的凝块，由鼻部吸入或肺部直接泵入，再进到脑中。
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9. In a laboratory vault outside Paris is a small cylinder of platinum–iridium alloy that serves as the standard for all mass measurements worldwide.
巴黎城外的一个玻璃罩里存放着一个铂铱合金圆柱体，这个圆柱体就是全世界测量物体质量的参照标准。
article.yeeyan.org
10. Iridium can also be found in crystals in computer memory devices, deep-water pipes, X-ray telescopes and the equipment that makes rayon fibers.
在电脑内存设备护面，深水导管，X射线望远镜和制造粘胶纤维的设备中，也都能找到铱的身影。
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11. Further examination revealed a crater rich in shocked quartz and iridium, minerals that are commonly found at impact sites.
进一步的调查显示火山口富含冲击石英和铱，在撞击地点一般都可发现这两种矿石。
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12. Until now, most approaches relied on impractically scarce materials like iridium as a catalyst that triggers the reaction.
到目前为止，大部分方式还在依赖象铱那样不实用的稀有原料作为引发反应的催化剂。
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13. They were especially interested in a 30-ft. layer of sediment just above the iridium layer.
他们对30英尺深度略高于铱层的一个沉积层特别感兴趣。
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14. The team is also working to find a more commonplace, less-expensive material for the catalyst, to replace the relatively rare and costly iridium used in this proof-of-concept study.
该小组还正在努力寻找一种更常见的，更便宜的催化剂，以代替在验证性概念研究中使用的相对昂贵和稀有铱催化材料。
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15. Iridium Satellite provides global satellite voice and data communications solutions with complete coverage of the Earth.
铱星卫星提供了覆盖全球的卫星语音和数据通信解决方案。
www.etiri.com.cn
16. At the same 65-million-year depth, the geologic record reveals that a thin layer of iridium was deposited pretty much everywhere in the world.
地质记录显示，在65万年前地球上同一深度的地层，世界各地都有一层薄薄的铱层存在。
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17. Boeing and Iridium are partnering to demonstrate initial capabilities of the system to the DOD by 2010.
2010年，铱星公司和波音公司一起将向国防部演示这一系统的初始能力。
www.etiri.com.cn
18. Another source of bright drifting objects, Iridium communication satellites, may even appear to flare up to become brighter than any other sky object for a few seconds.
铱星通讯卫星是另一个发光漂移物的可能来源，它可能突然闪耀几秒钟，甚至看起来变得比天空中的其它物体都要亮。
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19. Iridium, usually used in space rockets, is ten times rarer than platinum and highly resistant to heat so theoretically it can be dropped it into lava, and it will not melt.
铱，通常被用于太空火箭，比铂金稀有十倍并且高度耐热，因此理论上即使它掉进岩浆中也不会熔化。
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20. Serious accidents in recent years included the 2009 smash between the Iridium 33 satellite and the Kosmos 2251 satellite.
近些年来撞击事件频发，在2009年，铱33号卫星便与宇宙2251号卫星相撞。
gb.cri.cn
21. Change the 20-nanometer iridium to same-sized soot particles and the uptake rate falls by 75 percent.
若用相同大小的20纳米烟尘颗粒替换铱粒子，则摄入率降低75%。
article.yeeyan.org
22. Change the 20-nanometer iridium to same-sized soot particles and the uptake rate falls by 75 percent.
若用相同大小的20纳米烟尘颗粒替换铱粒子，则摄入率降低75%。
article.yeeyan.org
iridium
