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。
When the lady bugs were injected with dead microsporidia or a control substance most survived.
当植入死的微孢子虫或者对照物质时，大多数都存活了。
A brown, fatty, waxlike substance that forms on dead animal tissues in response to moisture.
尸蜡，脂蜡，尸油对潮湿起反应而形成于动物尸体组织的一个棕色蜡状油脂物质。
A brown, fatty, waxlike substance that forms on dead animal tissues in response to moisture.
尸蜡，脂蜡，尸油对潮湿起反应而形成于动物尸体组织的一个棕色蜡状油脂物质。
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