英语词汇lanthanum的读音、翻译及短语词组释义-英汉双解词典

单词	lanthanum
释义	lanthanum['lænθənəm]n. 镧【化】镧La【医】镧(57号元素) lanthanum lan.tha.num AHD: [l²n“th…-n…m] D.J. [6l#nGnm]K.K. [6l#nGnm]n.Symbol La （名词）符号 La A soft, silvery-white, malleable, ductile, metallic rare-earth element, obtained chiefly from monazite and bastnaesite and used in glass manufacture and with other rare earths in carbon lights for movie and television studio lighting. Atomic number 57; atomic weight 138.91; melting point 920&9{=}C; boiling point 3,469&9{=}C; specific gravity 5.98 to 6.186; valence 3.See table at element 镧：一种质软、银白色、有延展性的、可塑性的稀有金属，主要是从独居石和氟碳铈矿中提取出来，用于玻璃工业及电影或电视摄影照明的碳棒灯中。原子序数57；原子量138.91；熔点920&9{=}C；沸点3,496&9{=}C；比重5.98到6.186；原子价3参见 element语源:1. New Latin 现代拉丁语 2. from Greek lanthanein [to escape notice (from the finding of the element hidden in oxide of cerium)] 源自希腊语 lanthanein [避开注意力（指不被从铈氧化物元素中提取）]
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