trivalent

[traɪ'veɪlənt][traɪ'veɪlənt]

adj.三价的

  • One such crystal is the ruby which contains trivalent chromium ions dispersed in a matrix of alumina .

    这样的晶体有一种叫红宝石,它包含的 三价铬离子弥散在氧化铝的基体中。

  • Effect of Four Kinds of Carboxylate Complexing Agent on Electroplating of Trivalent Chromium

    4种羧酸盐配位剂对装饰性 三价铬电镀的作用

  • Effect of Rare Earth Element on Sulfate Trivalent Chromium Plating Process

    稀土元素对硫酸盐 三价铬镀铬工艺的影响

  • The effects of grain size on the electrochemical corrosion behaviors of zinc and trivalent chromium passivation film on zinc have been studied respectively by electrochemical methods .

    利用电化学方法分别研究了晶粒尺寸对纯锌及其 表面 三价铬钝化膜腐蚀行为的影响。

  • The effects of the components of trivalent chrome passivation bath on the appearance and corrosion resistance of the passivating film are investigated .

    采用 正交试验法对镀锌 三价铬黑色钝化工艺组分进行优化,研究了工艺参数对钝化膜外观和耐蚀性的影响。

  • In this paper three types of bath for trivalent chromium plating are gained : chloride-glycine bath chloride-U bath and sulfate-oxalic bath .

    本文新近研究了一种以甲酸盐-羧酸盐作为络合剂的 三价铬电镀新工艺,并对该溶液和镀层进行了性能测试。

  • Study of complexing agent in low concentration of trivalent chromium sulfate system

    低浓度硫酸铬体系 三价铬电镀配位剂的研究

  • Galvanized to trivalent chromium and hexavalent chromium passivation passivation process .

    镀锌为 三价铬钝化及六价铬钝化工艺。

  • A trivalent metallic element of the rare earth group ; occurs together with yttrium ; forms highly magnetic compounds .

    稀土属的一种 三价金属元素,与钇共生,形成极具磁性的化合物。

  • Effects of Interfering Ions on the Performance of Trivalent Chromium Blue-White Passivation Bath

    杂质离子对 三价铬蓝白钝化液性能的影响

  • The chromium deposition velocity of trivalent chromium electroplating was researched .

    三价铬电解液镀铬的沉积速度进行了实验研究。

  • Of or containing trivalent nickel ni3 + .

    三价镍的有或含 三价镍的,ni3+。

  • Elimination of Cr (ⅵ) in Trivalent Chromium Chloride Electroplating Bath

    氯化物 三价铬电镀液中六价铬离子的去除方法及效果

  • One relatively recent technique which has found some favor involves the inclusion of soluble trivalent antimony derivatives in the slurry during mixing .

    一种比较近代的、人们好采用的技术是在混合过程中加入可溶性的 三价锑衍生物。

  • Effects of Trivalent Chromium from Different Source on Carcass Composition and Lipid Metabolism in Finishing Pigs

    不同形式 三价铬对肥育猪胴体组成和脂肪代谢的影响

  • Trivalent chromium plating can be divided into chloride and sulfate systems .

    三价铬电镀分为氯化物体系和硫酸盐体系。

  • Study on the Chemical Phase Analysis of Manganese Ore ⅱ . Determination of Trivalent and Tetravalent Manganese Ore

    锰矿化学物相分析方法的研究Ⅱ. 三价和四价锰矿物的测定

  • Trivalent Chromium Black Passivation for Zinc Deposit and Its Influence on Corrosion Resistance

    镀锌 三价铬黑钝化工艺及其对耐蚀性的影响

  • It was studied that the graphite-based lead dioxide anode which had been electrochemically activated was used to electrogenerate trivalent cobalt ion by means of coulometry at ambient temperature .

    以库仑分析法为研究手段,考察了在室温下经电化学活化的石墨基二氧化铅阳极电生 三价钴的条件及其应用。

  • A hard ferromagnetic silver-white bivalent or trivalent metallic element ; a trace element in plant and animal nutrition .

    一种二价或 三价金属元素,坚硬的银白色铁磁体,植物动物营养中的微量元素。

  • Reduction and X-ray irradiation of trivalent samarium ions doped in barium borophosphate

    硼磷酸钡中 三价钐离子的还原和X射线辐照效应

  • Study on corrosion resistance of trivalent chromium passivation films on zinc coatings electroplated by different processes

    不同镀锌工艺 三价铬钝化耐腐蚀性研究

  • Effects of Grain Size on the Corrosion Behaviors of Zinc and Trivalent Chromium Passivation Film on Zinc

    晶粒尺寸对纯锌及其 表面 三价铬钝化膜腐蚀行为的影响

  • Study of Trivalent Chromium Bright Blue Passivation Process for Zinc Coating

    镀锌层 三价铬蓝白色钝化工艺的研究

  • The major advantages and disadvantages of trivalent chromium electroplating were introduced .

    介绍了 三价铬镀铬的主要优点与缺点。

  • A trivalent metallic element of the rare earth group ; usually occurs in association with yttrium .

    一种稀土属的 三价金属元素,通常与钇共生。

  • A ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group .

    稀土属的 三价金属元素,一种可延展的银白色铁磁体。

  • Effect of trivalent chromium on immune function of heat-stressed rats

    三价铬对热应激大鼠免疫功能的影响

  • A trivalent radical derived from glycerol by removing the three hydroxyl radicals .

    一种 三价基,由丙三醇去掉三个羟基获得。

  • Accumulation and elimination of hexavalent chromium ions in sulfate trivalent chromium electroplating bat

    硫酸盐 体系 三价铬镀液中六价铬离子的积累及去除