以单质碘为催化剂合成了环戊酮乙二缩酮.Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.传统的缩酮化、酯化反应工业上多采用浓硫酸作催化剂.Traditional ketalization and esterification reactions are usually catalyzed by concentrated acid in industr...
The mechanism of utilizing negative activators to passivate gasification reaction of coke is analyzed.分析和研究了利用负催化剂钝化焦炭气化反应的机理.This monograph is a primer to coal and biomass gasification technologies.这个专题著作是煤和生物量气化技术的一本入门...
Epithelium can also bear cilia.上皮也可长纤毛.Healthy, skin, mucous membranes, and cilia are natural barriers to many viruses.健康的皮肤, 粘膜和纤毛是许多病毒的天然屏障.The cilia are longer and less regular than the microvilli of a striated border...
用 非 等温热重法研究了代森锰锌的热分解反应动力学.Non - isothermal thermal decomposition kinetics of mancozeb was studied by thermogravimetry.本发明公开了一种含唑菌胺酯和代森锰锌的杀菌组合物及其应用.The present invention discloses one kind of germicide composition contain...