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survey of Chinese materia medica resources
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survey of Chinese materia medica resources
Encyclopedia
医学
中药资源调查
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survey of Chinese materia medica resources
中药资源调查
运用一定的方法和技术,以掌握对象资源物种或区域范围内药用动植物及矿物的种类、分布、蕴藏量、生态及产销情况等为目的的实地调查。是中药资源研究的基础性工作。
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precautionary principle of biosafety assessment
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precedance relation in dependency tree
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