Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Nzira yeBessemer ndiyo yaive nzira yekutanga yeindasitiri yekugadzira simbi yakawanda kubva pasimbi yakanyungudutswa isati yagadzirwa. Nheyo huru kubviswa kwezvisina kuchena kubva pasimbi kupfurikidza nokuita kuti mhepo ifuridzirwe nomusimbi wakanyungudutswa. Oxidation inosimudzawo tembiricha yesimbi uye inoita kuti irambe yakanyunguduka.  Mubvunzo: Chii chaibvumira simbi kugadzirwa pasina mari yakawanda isati yashandiswa muvira rakavhurika?
Maitiro aBessemer