稀土元素基本解释

汉语拼音:xī tǔ yuán sù

元素周期表ⅲb族中的钪、钇和镧系元素(原子序数从57至71共十五种元素)的合称。都为具银色光泽的金属,一般为正三价,质较软。化学性质相似,常在矿物中共生,较难分离。广泛应用在电子技术、石油化工、冶金及陶瓷等工业中。

稀土元素详细解释

  1. 镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱、镥、钇、钪十七种元素形成一组,叫做稀土元素。这类元素的化学性质极相似,在自然界中常混杂在一起。

稀土元素双语翻译,稀土元素在线翻译例句

    • The extraction behavior of lanthanides is investigated by using solid - liquid extraction technique.

      用固 - 液萃取法研究了稀土元素的萃取分离.

    • The addition of RE element improves the steel transever impact toughness.

      稀土元素的加入在一定程度上改善了钢材的横向冲击韧性.

    • The Catalytic mechanism of rare earth elements is also discussed.

      讨论了稀土元素的催渗机理.

    • The biological effects mainly focus on animal and medical fields.

      稀土元素的生物效应,主要集中在动物和医学领域.

    • Some typical cast ferroalloys and nonferroalloys containing rare earth elements were described.

      并介绍了一些典型的含稀土元素的铸铁合金和有色铸造合金.

    • The Shangzhuang apatite deposit is a low - grade apatite deposit associated with Fe, vermiculitizated biotite and REE.

      上庄磷矿为一大型 低品位 磷灰石矿床,伴生有益组分有铁 、 蛭石化黑云母及稀土元素.

    • The paper researches the effect of rare earths on carburized layer during carburizing operation.

      研究了稀土元素庄渗碳过程中对渗层组织的影响.

    • The bioavailability of light rare earth elements from maize root is evaluated by single regression analysis.

      用一元回归分析法评价了使用不同萃取剂时轻稀土元素的生物可利用性.

    • The extensive application of rare earth elements on agriculture has caused remarkable economic benefits.

      稀土元素在农业上得到了广泛的应用,产生了显著的经济效益.

    • Characteristics of trace and earth elements suggest that Ophiolite originated from the setting similar to - ocean ridge.

      微量元素和稀土元素特征显示蛇绿岩形成于类似洋中脊的构造环境.

    • Owing to unique electronic configuration rare earths have got very broad application in various fields.

      稀土元素具有特殊的电子构型,使其在许多领域得到十分广泛的应用.

    • The Lanthanon and its compounds, because of its 4 f electronic characters, have special performance.

      稀土元素由于具有4f电子特性, 使其元素及其化合物具有许多特殊的性能.

    • Changes in red soil microbial biomass under different REE concentrations have been studied.

      本文研究了不同稀土元素在不同浓度水平下红壤(黄筋泥)中微生物量的变化规律.

    • The effect of rare earth on impact fatigue property of cast semi steel was studied.

      研究了稀土元素对半钢冲击疲劳性能的影响.

    • In Chapter 3, bonding trends of homonulcear diatomic rare earth compounds have been studied.

      第三章运用相对论密度泛函计算系统研究了稀土元素同核二聚物的成键规律和变化趋势.