学科分类
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3 个结果
  • 简介:AccordingtothestatisticalanalysisoftheChinaAssociationofAutomobileManufacturers,becauseoftheimpactoftheSpringFestivalholiday,productionandsalesoftheautomobilesshowedarelativelyfastmonth-on-monthdecline,andthedeclineofpassengercarswasmoreobviousinFebruary2019.

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  • 简介:Ofthe17rareearthelements(REEs),somehaveprovenrarerthanothers.Neodymiumandpraseodymium(NdPr),twometalsinstrumentaltotherapidlyexpandinggreenenergyandelectricvehicle(EV)sectors,sawthegreatestdemandandpricemovementin2018.Demandforthemetals,whichareusedtomakehigh-strengthmagnetsforwindturbinesandEVengines,isexpectedtogrowasmoreEVsaremanufacturedandasclean-energystrategiesareadopted.

  • 标签: REES NdPr EV
  • 简介:AccordingtothenoticereleasedbyMIITandtheMinistryofNaturalResources,thefirstbatchofrareearthoreminingquotaswas60,000tonsin2019,ofwhichquotasforionictyperareearthmineral(mainlymediumandheavyrareearth)was9,575tons,andquotasforrocktyperareearthmineral(mainlylightrareearths)was50,425tons.

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