文本 - 南京中医药大学图书馆
文本 - 南京中医药大学图书馆
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
关键词的选择应注意——<br />
(1) 应覆盖检索主题<br />
(2) 寻找常用同义词<br />
(3) 词的全称、简称及缩写<br />
(4) 必要时应向上下位类词扩检<br />
(5) 合理使用词组或短语<br />
(6) 规范词的利用
Hooray! Your file is uploaded and ready to be published.
Saved successfully!
Ooh no, something went wrong!
Change language