译文：我用各种陆生草本植物和海生藻类植物代替树木制灰，用其他不同种类的岩石碎屑代替粘土。
Instead of wood as a source for ash, I used herbaceous land plants and Marine seaweeds, and replaced clay with other forms of degraded rock.
译文：我用各种陆生草本植物和海生藻类植物代替树木制灰，用其他不同种类的岩石碎屑代替粘土。
Instead of wood as a source for ash, I used herbaceous land plants and Marine seaweeds, and replaced clay with other forms of degraded rock.
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