General search ●检索功能 逻辑算符( Logical operator): and or not 通配符( Wildcards): 如: enzym* wom?n search for records that contain woman, women, or womyn. vapor to match vapor and vapour 检索词在同一短语中( in one phrase):same 精确短语检索( Exact Phrase Searching):用引号6 1. General Search 检索功能 ⚫ 逻辑算符（Logical operator）: and or not ⚫ 通配符（Wildcards）: 如：enzym* wom?n search for records that contain woman, women, or womyn. vapo$r to match vapor and vapour. ⚫ 检索词在同一短语中（in one phrase ）: same ⚫ 精确短语检索（Exact Phrase Searching）：用引号