单词 | samarium |
释义 | samarium[sə'mєəriəm]n. 钐【化】 钐Sm【医】 钐(62号元素) samarium sa.mar.i.um AHD: [s…-mâr“¶-…m, -m²r“-] D.J. [s*6me*ri8*m, -6m#r-]K.K. [s*6mWri*m, -6m#r-]n.Symbol Sm (名词)符号 Sm A silvery or pale gray metallic rare-earth element found in monazite and bastnaesite and used as a dopant for laser materials, in infrared absorbing glass, and as a neutron absorber in certain nuclear reactors. Atomic number 62; atomic weight 150.35; melting point 1,072&9{=}C; boiling point 1,791&9{=}C; specific gravity (approximately) 7.50; valence 2, 3.See table at element 钐:一种银色或灰色稀土金属元素,含于独居石和氟碳铈矿中,用于激光制品掺杂剂,红外线吸光玻璃,在一些核反应堆中作中子吸收剂。原子序数62;原子量150.35;熔点1,072&9{=}C;沸点1,791&9{=}C;比重约7.50;化合价2,3参见 element语源:1. samar(skite) samar(skite)2. -ium -ium |
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