n.萃取，提取，提炼
v.提取( extract的现在分词 ); （费力地）拔出; 选取; 获得

extracting forceps → 拔牙钳
air extracting pump → 抽气泵；抽气机
extracting tower → 萃取塔
DNA extracting → DNA提取
extracting solvent → 萃取溶剂；解压缩溶剂
extracting process → 提取工艺
extracting solution → 提取液
extg extracting → 提取