"euxenite:a lustrous, blackish-brown rare-earth mineral consisting primarily of cerium , erbium, titanium, uranium, and yttrium."
"黑稀金矿:亮的棕黑色稀土矿石,主要由铈、铒、钛、铀构成."
The study on technical process and kinetics of PVC heat steadilizer yttrium stearate by saponifying method was carried out.
采用皂化法制备了PVC热稳定剂-硬,并进行了动力学研究。
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This is designated Ytterby Mine, a historical landmark for the discovery of four periodic elements: yttrium, terbium, erbium, and ytterbium.
被命名为 Ytterby 矿,它是发现四周期性元素:钇、铽、铒和镱里程碑。
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