Rare-earth element, any member of the group of chemical elements consisting of three elements in Group 3 (scandium [Sc], yttrium [Y], and lanthanum [La]) and the first extended row of elements below the main body of the periodic table (cerium [Ce] throug
Rare-earth element - Minerals, Ores, Uses: The content of the individual rare-earth elements varies considerably from mineral to mineral and from deposit to deposit. The minerals and ores are generally classified as “light” or “heavy”; in the former
Uses of Rare Earth Elements Rare earth metals and alloys that contain them are used in many devices that people use every day such as computer memory, DVDs, rechargeable batteries, cell phones, catalytic converters, magnets, fluorescent lighting and much more. During the past twenty years, there...
groundwater,rare earth elementsandheavy metals, have shown that science must operate [...] unesdoc.unesco.org unesdoc.unesco.org 对资源越来越多的需求,如地下 水、稀缺地球资源和重金属等,显示必须以注重环境的方式开展科学活动,以减轻勘探和开采此类资源所带来 ...
Rare Earth Elements--End Use and Recyclability. Scientific Investigations Report 2011-5094.Goonan, T.G. Rare earth elements - End use and recyclability. U.S. Geological Survey Scientific Investigations Report 2011-5094, 2011.Goonan, T.G., 2011. Rare Earth Elements - End Use and Recyclability,...
Use DeepL Translator to instantly translate texts and documents Translate as you type World-leading quality Drag and drop documents Translate now ▾ External sources (not reviewed) The increased requirements for resources, e.g. groundwater,rare earth elementsandheavy metals, ...
The bioavailability of lightrare earth elementsfrom 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. 互联网 The mechanism of purerare earth elementsimproving electrical conductivity of industrial aluminum was also discussed. ...
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Although they use rare earth elements. 翻译结果3复制译文编辑译文朗读译文返回顶部 Although they use rare earth elements. 翻译结果4复制译文编辑译文朗读译文返回顶部 Despite the fact that they all use the rare earth elements. 翻译结果5复制译文编辑译文朗读译文返回顶部 ...
1. It suggests that rare-earth elements yttrium and praseodymium have certain genotoxicity. 提示稀土元素钇和镨具有一定的遗传毒性。 来自互联网 2. The nearside also has much more kreep-potassium, rare-earth elements, and phosphorus-according to scientists. 据科学家称,月球近地端含有更多的克里普矿物...