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TiO〓/K-M supported Ag/SiO〓 composite ceramic membrane tubes have been prepared and used as a membrane reactor for selective separation of C〓H〓 during the catalytic reaction process of CO〓 partially oxidating C〓H〓. By removing C〓H〓 produced in the catalytic reaction, thermodynamic balance of the reaction is upset and some side reactions from C〓H〓 are avoided, thus the conversion rate of C〓H〓 and the selectivity to C〓H〓 are effectively increased.

本研究设计、制备了硅藻土—莫来石陶瓷管负载的Ag/SiO〓复合膜，并将其应用于二氧化碳部分氧化乙烷催化反应过程中产物乙烯的选择性分离，有效地提高了催化反应的反应物乙烷转化率和产物乙烯选择性。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。