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科學家發現提取冶金用釩更便捷且廉價的方法

俄羅斯和白俄羅斯科學家研究出一種從硫酸生產廢料出提取釩的無廢方法。釩是一種廣泛用於冶金以增加合金強度的金屬。

University superior researchInstitutea scienceResearch centerNational researchRussian national researchResearch panResearch center belarusUniversity moscow nationalHealth belarusBelarus science hospitalஆராய்ச்சி மையம்தேசிய ஆராய்ச்சி

共產黨領導中國成第二大經濟體

共產黨領導中國成第二大經濟體
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