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- The effects of feed composition, reflux reaction time and catalyst concentration on PPTD yield were investigated. 采用正交实验,考察了原料投料比、回流反应时间、催化剂等因素对合成的影响。
- The result shows that catalyst concentration, reaction time, urushiol concentration and temperatures affect the polymer yield in oxypolymerization of urushiol system. 讨论了该配合物作为催化剂,催化漆酚氧化聚合反应时,催化剂浓度、时间、底物浓度以及温度对漆酚氧化聚合反应的影响。
- Reaction temperature,catalyst concentration,agitator speed and reaction time as well as reaction load were studied as affecting factors on cyclohexene hydration reaction. 考察了环己烯水合反应工艺中,反应温度、催化剂浓度、搅拌器转速、反应时间以及负荷对环己烯水合反应的影响。
- Using Citic Acid and Amminium Citrate as treatment reagent,NaH 2PO 4 as catalyst, the crease proof finishing of cotton fabrics is investifated with respect to the reagent concentration , catalyst concentration and the roasting condition. 以柠檬酸、柠檬酸铵做整理剂,NaH2PO4做催化剂,从整理剂浓度、催化剂浓度、焙烘条件三方面对棉织物防皱整理以织物折皱回复角及断裂强力为指标进行了研究。
- The polymerization of butyl methacrylate (BMA) is carried out by using Fe(acac) 3 Al(i Bu) 3 as a coordination catalyst. The effect of reaction temperature, time, solvent and catalyst concentration to BMA polymerization is studied. 研究了Fe(acac) 3 Al(i Bu) 3催化体系催化甲基丙烯酸丁酯 (BMA)的聚合反应 ;考察了温度、时间、催化剂浓度对聚合反应的影响 .
- Considering the finishing ways and effect, the optimized treatment condition: citric acid concentration is 0.8%, chitosan concentration is 0.25%, catalyst concentration is 1%, softener ACN concentration is 1.8%, MEJ concentration is 0.7%. 采用正交试验对整理工艺进行优化;得出壳聚糖抗菌整理精纺呢绒的最佳工艺。 整理液配方:柠檬酸浓度为0.;8%25;壳聚糖浓度0
- The effect of reaction temperature, reaction pressure, catalyst concentration, ammonia circulation rate, condensing temperature on fatty nitriles reaction rate, yield, energy demand are discussed. 讨论反应温度、反应压力、催化剂的浓度、氨循环速率、冷凝温度对脂肪晴的反应速率、得率、能量消耗的影响。
- The effects of different preparation methods,reaction time,catalyst concentration,and supersonic treatment on the photocatalysis degeneration of methyl orange were discussed respectively. 结果表明:不同的混合手段制备出的催化剂光催化效果却大不相同,其中采用机械混合法制备的催化剂活性最好。
- Keywords cyclohexene hydration;rate of agitation;catalyst concentration; 环己烯水合;搅拌速度;催化剂浓度;
- The offer of a new job provided just the catalyst she needed. 这份新工作正是她所需要转变的契机。
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- There is a concentration of people in big cities. 大城市人口集中。
- He seized every chance to break out of the Nazi concentration camp. 他抓住一切机会从纳粹集中营跑出来。
- A state of mental concentration. 专心致志,全神贯注全神贯注的状态
- Exceptionally great concentration, power, or force. 特别强烈的程度,力量或动力
- The last step is to regenerate the catalyst. 最后一步是将催化剂还原。
- The POWs burst out from(of) that Nazi concentration camp one night. 一天夜里战俘们冲出了那个纳粹集中营。
- War is a catalyst to help them to choose. 战争是一副催化剂来帮助他们选择。
- Debate is the best catalyst of thought. 争论是思想最好的催化剂。