Rare earth elements: their importance in understanding soil genesis. ISRN Soil Sci. 2012, 1-11.Aide MT, Aide C (2012) Rare earth elements: their importance in under- standing soil genesis. International Scholarly Research Network. ISRN Soil Science 2012(783876):11. doi:10.5402/2012/783876...
Hedrick INTRODUCTION The rare earth elements (REEs), which include the 15 lanthanide elements (Z = 57 through 71) and yttrium (Z = 39), are so called because most of them were originally isolated in the 18th and 19th centuries as oxides from rare minerals. Because of their reactivity, ...
During the 2010 supply scare, other large industries that used rare earth elements also discovered they could do without some of them. Oil refinery operators temporarily stopped using the rare earth element lanthanum, which improves oil refining efficiency, when the price went up. The glassmaking i...
The supply of rare earth elements that are critical to manufacturing electronic components is being constrained by trade restrictions. The volatility and nuances of these trade restrictions are creating a need for rework and multi-scenario planning for supply-chain managers, procurement, component enginee...
惰性气体元素duò xìng qì tǐ yuán sù inert gas elements; rare gas elements 稀有元素xī yǒu yuán sù rare element 稀土xī tǔ tombarthite; rare earth 稀土族xī tǔ zú rare earths 自然力量zì rán lì liàng elements 更稀罕的gèng xī hǎn de rarer 珍异zhēn yì rare 迁移遗传成分...
百度试题 结果1 题目Rare earth elements 相关知识点: 试题来源: 解析 (1)稀有金属 反馈 收藏
Rare Earth Elements (REE) are becoming increasingly important in electronic devices used in the defense, alternative energy, and communications industries. Minable deposits of REEs are found in only a few locations.
• LREE = 轻稀土元素(Light Rare Earth Elements,La-Sm) • HREE = 重稀土元素(Heavy Rare Earth Elements,Eu-Lu) 说了这么多,来看视频: 近期文章回顾: 1、【TPM英文】谈谈AM-自主维护 2、【实战口语】关于需要帮忙的英文表达 3、【职场英文...
rare earth n. 1.Any of various oxides of the rare-earth elements. 2.A rare-earth element. [rare(because the minerals from which the rare-earth elements were first isolated are uncommon) +earth,metallic oxide.] American Heritage® Dictionary of the English Language, Fifth Edition. Copyright...
Miningrare-earth(稀土)elements(REEs)haslongbeenconsideredadirtybusiness,asitcanleadtowaterandsoilpollution,butanewtechnologydevelopedbyChinesescientistsmaychangethetrend,offeringagreeneralternativefortheindustry.REEs,especiallyheavyones,areanessentialpartofmanyhigh-techdevices,fromtheenginesofelectriccarsandsmartphones...