a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium 同义词：Ir, atomic number 77,
Iridium is the chemical element with atomic number 77, and is represented by the symbol Ir. A very hard, brittle, silvery-white transition metal of the platinum family, iridium is the second-densest element (after osmium) and is the most corrosion-resistant metal, even at temperatures as high as 2000?°C.
例句与用法
1.
Platinum , palladium alloys - determination of iridium content 铂钯合金中铱量的测定
2.
Quick determination of super trace iridium in rock and mineral 岩石矿物中超微量铱的快速测定
3.
Standard specification for platinum - iridium electrical contact materials 铂铱电触点材料标准规范
4.
Electronic structures and physical properties of rhodium and iridium 贵金属铑和铱的电子结构和物理性质
5.
Platinum , palladium alloys - determination of iridium content 贵金属及其合金化学分析方法铂钯合金中铱量的测定
6.
Specification for refined iridium 精炼铱规范
7.
Determination of trace iridium by spectrophotometric method with o - hydroxybenzenediazoaminoazobenzene 邻羟基苯基重氮氨基偶氮苯光度法测定微量铱
8.
Standard test method for determining the focal size of iridium - 192 industrial radiographic sources 测定铱192工业x射线源的聚焦尺寸的标准试验方法
9.
Something the researchers have not found in this layer is iridium , or at least not a lot of it 在这个木炭层中，研究人员并没有发现铱，或者至少不是大量的铱。
10.
Comets consist of “ dirty ice ” , rather than solid rock , and so contain little iridium 彗星是由“脏冰”所组成，而不是像小型那样由固体岩石组成，所以只含有少量的铱。
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