The purity 99.99% of scandium oxide(Sc 2O 3) was prepared from tungstenic slag with extraction process.
用萃取法从钨度为99.99%的氧化钪。
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Scandium is an element which chemists usually ignore, I have never used scandium in any of my research.
是一种元素,化学家通视它,我在任何究中都未曾使。
How can you have got to your ripe old age as a chemist and never seen scandium?
你作为一名化学家,怎么可能活到这把年纪却从未见呢?
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