search argument meaning in English

查找变元

A search argument sarg limits a search because it specifies an exact match , a range of values , or a conjunction of two or more items joined by and
搜索参数( sarg )可指定精确匹配、值的范围或由and联接的两项或多项的连接，因此能够限制搜索范围。
The web edition of the dictionary database can either be queried in " search mode " ( by entering search arguments in the top bar ) or it can be accessed in " browse mode " ( by navigating through the indices listed in the frame on the left )
词典数据库的使用，主要可分别为"检索模式" (于顶栏键入搜索词项)和"浏览模式" (用左栏列出的各种索引浏览)两种。