a mineral or similar substance 矿物或者类似的物质
To convert to a mineral substance; petrify.
这些矿物质使水有毒。
There is little resemblance between a piece of a mineral substance found in the earth, and a plough, an axe, or a saw.
地球上的一块矿物和一张犁、一把斧、一把锯之间相似之处很少；
Petrifaction may also involve a simultaneous exchange of the original substance of a dead plant or animal with mineral matter of a different composition.
石化还可能同时涉及将死亡的动植物的原有物质与不同成分的矿物质进行交换的作用。
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