[translate] a我们要学会减压、 正在翻译,请等待... [translate] aThe XRD pattern indicates that XRD样式表明那 [translate] aFe2O3 can not be excluded), Fe3O4, and the diffraction peaks are [translate] a(JCPDS no. 19-629) revealing a high phase purity of the product. [translate] ...