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  同时输入多个词语搜索(不同字词之间用一个搜索符号,例如Boolean值隔开),可以获得更精确的搜索结果。
 
  搜索范围限定式查询
  通过较明确和特殊的信息来缩小查找范围。
 
  搜索范围名称列表
  通过搜索范围限定方式查询和举例。
 

搜索符号
 

下列为不同的搜索符号(例如Boolean值)以及注解

符号 范例 Use 文章搜索范围....
AND internet AND programming internet and programming in the same article.
OR internet OR programming internet or programming, or both, anywhere in the entire article.
NOT internet AND NOT programming internet but not programming.
NEAR internet NEAR/3 programming internet occurs within 3 words near programming.
ADJ internet ADJ programming programming appears immediately after internet.
W/n internet W/3 programming programming occurs within 3 words after internet.
? int??net matches internet, intranet...
* inter* matches inter, internet, international...
+ program+ matches program, programmed, programming, programmer...
# program# matches program, but not programmed, programming, programmer...
注:

ADJ 是缺省值。

例如: internet programming would be the same as internet ADJ programming
Query-Time Stemming is turned off. Use + to force a search for all variants of a query term.
例如: program would be the same as program#.

搜索范围限定式查询

:field
  用于单独关键词搜索——在冒号后面标明区域可使搜索仅在制定范围内进行查询。

例如: smitD:author 表明author(作者范围)为smith的指定搜索区域。
/F:
  用于多个搜索同时进行——在特定范围内对多个关键词进行搜索。.

例如: kirk douglas/F:text, author, title 指定了kirk 和/或者 douglas 将在全文,作者或题目中搜索。
field=num
  用于数字指定查询——搜索结果必须严格符合数字。

例如: year=1982 要求搜索结果内容的年份必须为1982。
搜索范围名称列表
 

搜索范围将帮助你通过详细的和特殊的信息来进行搜索,例如作者名字和出版社名称等等。以下列表介绍了最常用到的范围。


以下为常用范围
范例

TITLE DocTitle From Cape to Congo:TITLE
AUTHOR Author Elaine Windrich:AUTHOR
SUBJECT Subject Baregu, Mwesiga Laurent:SUBJECT
JOURNAL Journal Africa Today:JOURNAL
VOLUME Volume 51:VOLUME
ISSUE Issue 2:ISSUE
FTPAGE First Page 132:FPAGE
LPAGE Last Page 134:LTPAGE
YEAR Year 2004:YEAR
DOCUMENTTYPE Document Type Review:DOCUMENTTYPE
ISSN ISSN 1527-1978:ISSN
PUBDATE Publication Date 01/06/05:PUBDATE
COPYRIGHT Copyright Copyright @ 2004 The Johns Hopkins University Press:COPYRIGHT



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