Indasitiri, girafu yechisikigo inoiswa mucrystalline graphite uye cryptocrystalline graphite zvinoenderana nekristaro fomu. Iyo crystalline graphite yakanatswa zviri nani, uye dhayamita yekristaro ndeye> 1 μm, iyo inonyanya kugadzirwa nekristaro imwe chete kana kristaro inoputika. Crystal...
Verenga zvimwe