如何使用 "iridium" 造句

1. Indeed , two iridium layers have been found in some places .
确实,有些地方发现了有两个铱层。
2. Platinum , iridium and the rest are expensive precisely because they are rare .
正因为稀有,铂、铱等矿物才价格不菲。
3. 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。
4. 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。
5. 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。