{HEAD ~ The heat} evolved is extracted from {TAIL ~ the melt} by submergence of solid to be heated into the melt, by injection of heated gases into molten slag, by heat exchange between the wall confining the melt and gas, liquid or solid to be heated, or by conversion of steam into H2 and CO 
evolved is extracted from
{ HEAD ~ The heat } evolved is extracted from { TAIL ~ the melt } by submergence of solid to be heated into the melt , by injection of heated gases into molten slag , by heat exchange between the wall confining the melt and gas , liquid or solid to be heated , or by conversion of steam into H2 and CO
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH