学科分类
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5 个结果
  • 简介:Britholite-(Y)(abukumalite),arare-earthmineralfirstdiscoveredinJapanandSovietUnionin1963,wasrecentlydiscoveredinHenanProvince,China,bySongChunliu,QiaoBingkunandZhangJianhong.Itisasilicatemineralofa-patite-structure.Itschemicalformulais(Y,Ca,Dy)(SiO4)3(OH,F).Itcontainsabout44%YRO3andnearly5%Dy2O3.Themineraloccursingraniteinassociationwithgadolinite,fergusonite,samarskite,

  • 标签: GRANITE HENAN SILICATE RUTILE BREAKING
  • 简介:AccordingtoAlixPartners,aglobalconsultancy,whichpublishedthe2017GlobalAutomotiveOutlookinShanghairecently,theworldwideautomotivesectorisforecasttogrowto114millionvehiclesby2024.Inparticular,BrazilandRussiaareshowingsignsofrecoveryandgrowthhascontinuedinChina,whereastheUSisexpectedtocontinuetodeclineintheshortterm.AlthoughslightlybelowGDPexpectations,thisoverall

  • 标签: 新能源汽车 预计 国内生产总值 咨询机构 咨询公司 汽车业
  • 简介:Ⅰ.FeaturesofREapplicationinsteelinrecentthreeyearsinChinaTherearetwomajorREapplicationsinChina.Oneisintraditionalfieldsincludingapplicationsinmetallurgy&machinery,petroleum&chemicalindustry,glass&ceramicsandagriculture,lightindustryandtextileindustry,etc.Andtheotherisapplicationinhi-techin-

  • 标签: 应用 可再生能源
  • 简介:Ⅲ.ApplicationtrendofrareearthinironandsteelCurrently,pretreatmenttohotmetalandmoltensteelrefininginChinaarenotsopopularasindevelopedcountries.Thecontentofsulfurinlow-alloysteelinsomesmallandmediumsteelmillsinChinaisabout0.012%,whichisseveraltimeshigherthanthatino-

  • 标签: 稀土钢 应用 铁水预处理 钢水精炼 发达国家 低合金钢