vanadium pentoxide
vanadium-pentoxide的词性：
n.（名词）
1. A yellow to red crystalline powder, V2O 5, used as a catalyst in various organic reactions and as a starting material for other vanadium salts. Also called vanadic acid
五氧化二钒：黄色或红色晶体粉末，V2O 5，在多数有机反应中用作催化剂并且其他钒盐的起始物质 也作 vanadic acid