thulium / ˈθu li əm /

📖毕业后词汇硫磺铥元素

thulium 的定义

n. 名词 noun

Chemistry.

  1. a rare-earth metallic element found in the minerals euxenite, gadolinite, etc. Symbol: Tm; atomic weight: 168.934; atomic number: 69; specific gravity: 9.32.