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- The results show that the catalyst has good catalytic behavior at lower temperature and excellent stability in the time on stream experiment. The optimum reaction conditions are O2/C2H5OH=1.6and T=573K. 结果表明;A u/C eO2催化剂活性组分A u与载体C eO2存在较强的相互作用;对乙醇部分氧化制氢反应具有较好的低温催化活性和良好的稳定性;其最佳的反应条件是O2/C2H5OH摩尔比为1.;6;反应温度573K。
- Effects of reaction conditions, including WHSV, reaction temperature, N_2 content and time on stream, were studied on side chain alkylation of toluene with methanol over basic zeolite catalysts. 研究了重量空速、反应温度、载气流速、反应时间等工艺条件对甲苯、甲醇在碱性沸石上侧链烷基化反应的影响。
- The new plant comes on stream in March. 新工厂将於三月份投产。
- The factory is due to come on stream next year. 这工厂计划明年投入生产。
- The refinery could be on stream within three or four weeks. 提炼厂可在三四个星期内开始生产。
- Don't waste time on nonessentials. 不要把时间浪费在枝节事情上。
- From that time on I gained a new life. 那时起我获得了新生。
- Don't waste time on niggling details. 不要为琐事浪费时间。
- We had a good time on the weekend party. 我们在周末聚会上玩得很快乐。
- I can't waste time on such frivolities. 我不能在这种无聊的事情上浪费时间。
- He spends very little time on his studies. 他在学习上花的时间甚少。
- He didn't spend much time on his homework. 他很快就完成了作业。
- We had a tremendous time on the beach. 我们在海滩上玩得很痛快。
- The new computer system comes on stream next month. 新的计算机系统下月投入使用。
- Don't waste time on these lesser matters. 别把时间浪费在那些无关紧要的事情上。
- A new power plant is soon to go on stream. 一座新的电厂即将投入运行。
- We had a wonderful time on the beach. 我们在海滩上玩得好极了。
- We all had a good time on the beach. 我们在海滩上玩得很开心。
- Don't waste your time on these trivial things. 不要把你的时间浪费在这些琐事上。
- The engineer bestowed much time on the project. 这位工程师把大量时间花在那个工程上。
