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定义

  • Manual observation is the active acquisition of information from a primary source, by recording the value manually. Observers make visual observations and may take readings from measurement instruments. (en)

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URI

http://aims.fao.org/aos/agrovoc/c_8f008d01

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RDF/XML TURTLE JSON-LD 创建于 2019/7/18, 最后修改 2023/11/20