Lava is just a marketing name corporations give it.

熔岩只是企业给它起的一个营销名称。

As bigger packages made their way onto shelves, companies including Charmin shifted their marketing, naming them " double" , " triple" and even " mega" rolls.

随着更大包装的卫生卷纸摆上货架，Charmin 等公司改变了营销策略，将其命名为“双倍”、“三倍”甚至“超大”卷纸。