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上位词标引
一种主题标引方式。在标引时,没有找到与文献主题含义相对应的专指概念或组配概念,而使用词表中概念更加宽泛的上位概念进行标引的方法。又称上位标引。
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reversed-phase micellar extraction
reversed-phase micellar extraction; reversed micellar extraction
reversed process
reverse drag structure
reversed rotation
reversed telephoto lens
reversed-telephoto lens
reversed ventilation of mine
reverse electromotive force
reverse electron demand
reverse-electron-demand
reverse engineering
reverse engineering design
reverse engineering system
reverse fault
reverse feedback
reverse-feeding
reverse flotation
reverse genetics
reverse genetics screening
reverse greedy algorithm
reverse half-cycle
reverse inclusion
reverse inequality
reverse innovation
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
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更新时间:2026/9/17 3:20:52