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1 drossing
فصل النفاية* * *فَصْلُ النُّفَايَةِ
См. также в других словарях:
lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… … Universalium