[Preliminary studies on temperature in the processing of hematite].
D005296:Ferrous Compounds / Q000032:analysis*; D006358:Hot Temperature; D007501:Iron / Q000032:analysis*; D008516:Medicine, Chinese Traditional; D008518:Medicine, East Asian Traditional; D008903:Minerals / Q000032:analysis; D013696:Temperature
D005296:Ferrous Compounds; D008903:Minerals; D007501:Iron; C034236:ferrous oxide