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方法 > 研究方法 > 調査 > geochemical surveys (en)

PREFERRED TERM

 

DEFINITION

  • A survey involving the chemical analysis of systematically collected samples of rock, soil, stream sediments, plants, or water; this expression may be further modified by indicating specif. the material sampled, as, for example, geochemical soil survey. (en)

BROADER CONCEPT

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URI

http://aims.fao.org/aos/agrovoc/c_4ded6022

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