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非木质林产品经营认证
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非木质林产品经营认证
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森林认证
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non-timber forest products management certification
非木质林产品经营认证
按照标准和规定的程序,对产自于森林环境下的非木质林产品的生产过程进行评估,以证明其生产经营活动具有森林环境特征,且非木质林产品经营具有可持续性。
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category theory
Category Theory of Concept
category unification
category with composition
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category with direct limits
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category with involution
category with limits
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category with products
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