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- iron alumina ratio 铁 矾土比
- The thermal and hydrothermal stability of MSU-2 increased with the increasing silica to alumina ratio,the MSU-2 has a matchable thermal stability with NaY zeolite,and a matchable hydrothermal stability with HZSM-5 (n(SiO 2)/n(Al 2O 3)=38) zeolite. 实验结果表明 ,中孔分子筛MSU -2热稳定性与NaY分子筛相当 ,水热稳定性与HZSM -5 (n(SiO2 ) /n(Al2 O3 )为 38)相当 ,随着n(SiO2 ) /n(Al2 O3 )的增大 ,MSU -2的热和水热稳定性增强 ;
- Napoleon conquered by the force of an iron will. 拿破仑攻无不克靠的是坚强的意志。
- It will take weeks to get all the wrinkle iron out. 解决这些难题得要几周时间。
- THE EFFECT OF ZEOLITE STRUCTURE AND SILICA ALUMINA RATIO ON ETHYLENE SELECTIVITY IN FCC 分子筛孔结构和硅铝比对催化裂化产品中乙烯选择性的影响
- Have you any scrap iron knocking about? 你那儿有散在各处的废铁吗?
- SYNTHESIS AND CATALYTIC CRACKING PERFORMANCE OF ZSM-5 ZEOLITES WITH HIGH SILICA ALUMINA RATIO 高硅铝比ZSM-5分子筛的合成及催化裂化性能研究
- He cut the iron pole to the size he wanted. 他把铁杆锯成他需要的尺寸。
- It is some kind of plastic made to imitate iron. 这是一种塑胶,但外观仿制得像铁。
- That iron is a good conductor is known to us all. 铁是良导体这是我们大家都知道的。
- She seared her hand on the hot iron. 她的手被热熨斗烫伤。
- We need an electrician to mend the iron. 我们要请电工修理熨斗。
- These appliances are made of stainless iron. 这些器具是用不锈钢制成的。
- Flakes of rust are falling from the old iron pan. 一片片的锈从旧铁锅上落下。
- The worker repaired the barrel with a hoop iron. 这个工人用一个铁箍修桶。
- They tried to use an iron bar to pry open the lock. 他们试图用一根铁棒撬开锁。
- Iron and steel are of great use. 钢和铁有很大的用处。
- Iron is melted by the agency of heat. 铁由于热能的作用被融化。
- Have you get any idea about iron? 你知道铁是什么东西吗?
- Mr Black was a man of cast iron will. 布莱克先生是个意志坚定的人。