目前正在从现场带回的灰上做测试，以分辨那些被烧成灰烬的画像和木头雕像。
Tests are being done on ash from the site for remains of incinerated paintings and wood sculptures.
无论是灰烬还是岩石，所有因火山爆发而形成的碎片状物质都称作火山灰。
Tephra is any fragmented material produced by a volcanic eruption, be it ash or rock.
他们用到了稻壳灰(也就是稻谷脱粒之后焚烧稻壳剩下的灰烬，其中富含二氧化硅和碳)，经过简单处理后开发出一种制造隔热板的新材料。
They took something called rice husk ash: the leftover husks from processing rice is burned for energy, and the ash remains. It's high in silica and carbon.
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