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文献分类标引
利用某种文献分类法及其标引规则,依据文献内容主题及其部分外部特征,赋予文献分类号的过程。又称文献分类。
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feeble pulse
feeble solution
feeble stability
feeble wind
feebly semi-separated space
feed
feedable natural plant feed
feed acidifier
feed additive
feed additive premix
feed additives
Feed and Feed Additives Regulations
feed antibiotic growth promoter
feed antigen allergic reaction
feed antinutritional factors
feed antioxidant
feedback
feedback ability
feedback adjustment
feedback amplifier
feedback-based flow control
feedback bridging fault
feedback channel
feedback circuit
feedback control
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更新时间:2026/9/4 22:34:14