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tungstic中文是什么意思

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用"tungstic"造句"tungstic"怎么读"tungstic" in a sentence

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  • adj.
    【化学】六价钨的,(正)钨的;五价钨的。

例句与用法

  • Technological practice of producing tungstic acid using waste catalyst containing tungsten
    利用含钨废催化剂生产钨酸工艺实践
  • Industrial experience of producing tungstic acid using waste catalyst containing tungsten
    利用含钨废催化剂生产钨酸的工业实践
  • In 1958 , ganzhou concentration plant was established and started its production . after 1963 , tungstic acid , apt , w powder , wc powder and cemented carbide could be produced too
    1958年,赣州精选厂建成投产。 1963年以后,进一步发展到生产钨酸、钨酸钠、仲钨酸铵、钨粉、碳化钨粉、硬质合金等。
  • With phosphato - tungstic acid as catalyst and phosphoric acid as dehydrant , n - phenylmaleimide was prepared from aniline and maleic anhydride by two - step method . the yield was 88 . 7 % and the purity was 98 . 2 %
    以顺酐和苯胺为原料,磷钨酸作催化剂,磷酸作脱水剂,采用两步法制得n -苯基马来酰亚胺,得到最佳反应工艺条件,产品收率为88 . 7 % ,纯度为98 . 2 % (质量分数) 。
  • Abstract : analytical methods for impurities in tungsten and tungstic compounds in recent 10 years were reviewed . among them were atomic emission spectrometry , atomic absorption spectrometry , mass spectrometry , electrochemical analysis , spectrophotometry and activation analysis . 53 references were cited
    文摘:综述了近10多年来钨及其化合物中杂质元素的分析方法,涉及方法包括原子发射光谱法、原子吸收光谱法、分光光度法、质谱法、电化学分析法以及活化分析法等。
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