N a silvery metallic element of the lanthanide series occurring chiefly in monazite and bastnaesite and used in carbon-arc lighting, as a doping agent in laser crystals, and as a neutron-absorber. Symbol: Sm; atomic no: 62; atomic wt: 150.36; valency: 2 or 3; relative density: 7.520; melting pt: 1074°C; boiling pt: 1794°C 钐
Samarium, Samarium Metal, Metal Samarium.
钐,金属钐,钐金属。
The source, influence and control of the impurity dements in samarium are described in this paper.
本文在实验的基础上论述了钐中杂质的来源,影响及控制方法。
The source, influence and control of the impurity elements in samarium are described in this paper.
本文在实验的基础上论述了钐中杂质的来源,影响及控制方法。
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