( exˈtractor fan) a device that removes hot air, unpleasant smells, etc. from a room 排气扇；抽油烟机◆the noise of the factory's extractor fan 这家工厂排气扇的噪音◆fume extractor equipment 排烟设备
a device or machine that removes sth from sth else 提取器；萃取器
() software that finds and collects particular information from a computer file, web page, etc. 抓取程序；搜集程序◆an email extractor 电子邮件搜集程序