熔 ⇒
熔岩 róngyán, lava
熔化 rónghuà, to melt (of ice, metals etc)
熔 róng, to smelt/to fuse
熔炉 rónglú, [熔爐], smelting furnace/forge
熔解 róngjiě, fusion
熔合 熔炼 róngliàn, [熔煉], to smelt
熔融 róngróng, to melt/to fuse
熔剂 熔点 róngdiǎn, [熔點], melting point
熔铸
渣 ⇒
渣 zhā, slag (in mining or smelting)/dregs
渣滓 zhāzǐ, residue/dregs/disreputable people
残渣 cánzhā, [殘渣], remainder/filtered out residue/sediment/waste product/debris/detritus/rubbish
渣子 煤渣 méizhā, slack
矿渣 kuàngzhā, [礦渣], slag (mining)
废渣 fèizhā, [廢渣], industrial waste product/slag
油渣 渣土 沉渣 豆腐渣 dòufuzhā, okara (i.e. soy pulp, a by-product of making soymilk or tofu)