| 释义 |
〔extract〕A concentrated preparation of the essential constituents of a food, a flavoring, or another substance; a concentrate:浓缩物,汁:一种食物、调味品或其它物质的精华部分的浓缩制剂;浓缩物:〔hydrometallurgy〕The treatment of metal or the separation of metal from ores and ore concentrates by liquid processes, such as leaching, extraction, and precipitation.水冶金术:通过液体过程,象过滤,提炼,沉淀等方法处理金属,从矿石中或矿石浓缩物中分离出金属 |