旧砂再生炉
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multiple-hearth furnace; in-hearth-out-hearth furnace; multiple-hearth furnace; in-hearth-out-hearth furnace
multiple-hearth furnace; in-hearth-out-hearth furnace; multiple-hearth furnace; in-hearth-out-hearth furnace
пословный:
旧砂再生 | 再生炉 | ||