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- Higher productivity and selectivity of propene in dehydrogenation of propane wereachieved with MgO crystal catalyst treated by shock wave. 经处理后的结晶氧化镁用作丙烷脱氢制丙烯反应的催化剂，丙烷转化率、丙烯产率及选择性均有一些提高。
- The experiment showed that the right amount of water added into the system could improve the selectivity of diisopropyl ether while the amount of propene in products decreased. 不加水时主要生成丙烯;加入适量的水有助于降低丙烯而提高异丙醚的选择性;催化活性除与酸性有关外,与杂多酸的特殊结构“假液相”模型密切相
- The relation between the effect of adding rare earth oxides (CeO_2, Pr_2O_3 and Nd_2O_3) and their atomic number has been correlated. It was discovered that the selectivity of propene increases as the atomic number increases. 关联了CeO_2、Pr_2O_3与Nd_2O_3的稀土效应与其原子序数的关系,发现丙烯选择性随原子序数增加而提高。
- That shop has a fine selection of cakes. 那家商店有各种精美的糕点供我们选择。
- That store has a good selection of furniture. 那家店有很多家具可供挑选。
- selectivity of propene 丙烯选择性
- The protein binding selectivity of clozapine was discussed. 讨论了氯氮平蛋白结合作用的选择性。
- Her selection of a dress took a long time. 她挑选一件衣服花了很长时间。
- The reslts showed that the IMR are more efficient than the FBR. Propene selectivity of up to 57.4% and product yield of 22.1% were obtained in the IMR. 结果表明 ;IMR优于 FBR;IMR的丙烯选择性为57.;4%25;丙烯收率为 2 2
- We have a very wide selection of watches. 我们有很多手表可供选择。
- We've got a wide selection of table wine. 我们有大量的料酒供选择。
- Rising temperature can greatly increase the conversion of propane and then the yield of propene. 升高温度虽然能极大的提高丙烷的转化率从而增加丙烯的收率。
- A selection of interesting news photograph. 精选当周一张有趣的新闻图片。
- We have a large selection of short sleeve shirts. 我们有很多可供挑选的短袖衬衫。
- The liquid product from the ammoxidation of propene to acrylonitrile was analyzed by means of coupling the Type 103 gas chromatograph with a computer. 本文利用103型气相层析仪与电子计算机联接，分析了丙烯氨氧化合成丙烯腈的液体产物。
- We have a large selection of greeting cards. 我们有各种贺卡。
- Her selection of a hat took a long time. 她挑选一顶帽子花了很长时间。
- Poly-ethereal nitriles have been synthesized by the reaction of propene nitrile and diethylene glycol using an alkaline catalyst. Optimum reaction conditions are determined. 摘要利用碱性催化剂，以丙烯腈与二甘醇反应合成聚醚腈，确定其最佳反应工艺条件。
- The showroom has a wide selection of kitchens. 展厅里有多种式样的厨房可供选择。
- Cancel the selection of one object at a time. 一次取消选中一个对象。
