参考词典中contact action的常规释义：
基本释义
英英解释
- acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction
[同]
contact action, catalysis
[例]
- of the top 50 commodity chemicals, 30 are created directly by catalysis and another 6 are made from raw materials that are catalytically produced
点击查看……
鲁公网安备 37060202000128号 
