摘要
China’srareearthindustryencoun-teredsomedefficultiesin1989afterkeepinguparapiddevelopmentinpro-ductionandmarketingathomeandabroadComparedwith1988,themineralproductoutputdecreasedslightly,buttheyieldofprocessedproductsandsalesvolumestillincreasedsomewhat.Thoughtheannualoutputofmineralproductsin1989was25220tonsREO,15%downfrom1988(29640tonsREO),yetitisstillthelargestproducerinthe
出版日期
1990年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)