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单词 selenium
释义 selenium
n. Chem. a non-metallic element occurring naturally in various metallic sulphide ores and characterized by the variation of its electrical resistivity with intensity of illumination.
Usage
Symb.: Se.
Phrases and idioms
selenium cell a piece of this used as a photoelectric device.
Derivatives
selenate n. selenic adj. selenious adj.
Etymology: mod.L f. Gk selene moon + -IUM
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更新时间:2025/3/24 6:42:07