Dioxins are mainly by products of industrial processes but can also result from natural processes, such as volcanic eruptions and forest fires.
二恶英主要是工业过程的副产品，但也可能来自于自然过程，如火山爆发和森林火灾。
The major products are baked pit Nang, crystal grill, barbecue smoke and other volcanic rock.
产品主要有馕坑烤，水晶烤，火山石无烟烧烤等。
The major products are baked pit Nang, crystal grill, barbecue smoke and other volcanic rock.
产品主要有馕坑烤，水晶烤，火山石无烟烧烤等。
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