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  • A common substance found in limestone and chalk rocks. It is extracted from seawater by animals such as shellfish and snails to form their hard shells. The chemical formula for calcium carbonate is CaCO3.

    创建: 2/20/24

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http://aims.fao.org/aos/agrovoc/c_1197

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RDF/XML TURTLE JSON-LD 创建于 2012/2/3, 最后修改 2024/2/20