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a mid-quality coal used primarily for electricity production through steam generation (compare: metallurgical coal), kesmise kvaliteeediga kivisüsi mida kasutatakse peamisel auru tootmiseks elektrijaamades (vrd metallurgiasüsi)
thermal coal . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/thermal%20coal/1/eng (04.07.2026)
