uranium / yʊˈreɪ ni əm /

💦中学词汇铀矿浓缩铀铀元素

uranium 的定义

n. 名词 noun

Chemistry.

  1. a white, lustrous, radioactive, metallic element, occurring in pitchblende, and having compounds that are used in photography and in coloring glass. The 235 isotope is used in atomic and hydrogen bombs and as a fuel in nuclear reactors. Symbol: U; atomic weight: 238.03; atomic number: 92; specific gravity: 19.07.

更多uranium例句

  1. Also, large amounts of uranium would have required the presence of lots of neutrons.
  2. Violent explosions of massive, magnetized stars may forge most of the universe’s heavy elements, such as silver and uranium.
  3. After blasting uranium with neutrons, Fermi and colleagues reported evidence of success.
  4. Among the provocative moves, Iran began enriching uranium at levels beyond caps outlined in the accord.
  5. In the process, heavy elements such as uranium begin to crystalize, forming “snowflakes” in the stars’ cores.
  6. Importantly, as part of the interim plan, Iran has diluted or converted its stockpile of 20 percent enriched uranium.
  7. And that conglomerate also owns nearly 70 percent of the Rossing uranium mine in Namibia.
  8. Since then, all dividend payments have been frozen and Iran receives “no uranium or revenue from the mine.”
  9. A drawing of what was deemed a “deer pig” was also sent through the uranium decay ringer.
  10. He referred to this risky state of affairs as “the babushka-with-uranium-in-the-chicken-shed” problem.
  11. It's not controllable enough and uranium isn't something we could carry by the ton.
  12. But the osmium and uranium alloyed with it are something else.
  13. Radium was discovered in 1898 by M. and Madame Curie and M. Bmont, while experimenting with the uranium mineral pitchblende.
  14. From the steel-like ground they scooped a dozen tons of the dirty black uranium ore and sent it hurtling back to the Bertha.
  15. They flew about a huge stack of lead containers—uranium cells secured for the long trip home.