英语词汇“thulium”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

thulium

/ˈθ(j)uːlɪəm

noun [mass noun]

The chemical element of atomic number 69, a soft silvery-white metal of the lanthanide series. (Symbol: Tm) Each segment contains small amounts of ions of relatively rare metals, such as dysprosium, thulium, and cerium, which fluoresce in different colors....

The pure metal can be produced by treating thulium fluoride with calcium metal.
The main rare-earth ions used are thulium (for devices operating at 1450 to 1510 nm) and erbium.

Origin

Late 19th century: modern Latin, from Latin Thule (see Thule (sense 1)), from Greek Thoulē, of unknown origin.

单词	thulium
释义	thulium /ˈθ(j)uːlɪəm / noun [mass noun] The chemical element of atomic number 69, a soft silvery-white metal of the lanthanide series. (Symbol: Tm) Each segment contains small amounts of ions of relatively rare metals, such as dysprosium, thulium, and cerium, which fluoresce in different colors.... The pure metal can be produced by treating thulium fluoride with calcium metal. The main rare-earth ions used are thulium (for devices operating at 1450 to 1510 nm) and erbium. Origin Late 19th century: modern Latin, from Latin Thule (see Thule (sense 1)), from Greek Thoulē, of unknown origin.
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