selective reduction
英 [sɪˈlektɪv rɪˈdʌkʃn]
美 [sɪˈlektɪv rɪˈdʌkʃn]
网络 选择性还原; 选择性减胎
双语例句
- The outcome of follow-up after selective reduction of triplet pregnancy after in vitro fertilization-embryo transfer
体外受精-胚胎移植后三胎妊娠减胎术后随访结局分析 - Research and Designing of Selective Reduction Catalyst Converter Combined with Silencer for Heavy Duty Diesel Engine
重载柴油机选择性催化消声器的设计研究 - The catalytic reduction of NO_x was reviewed with the emphasis on the progress of studies, developing trend and the reaction mechanisms of the selective reduction of NO_x with hydrocarbons.
综述了催化还原法消除氮氧化物研究现状、发展趋势及反应机理，特别是对烃类选择性催化还原氮氧化物过程进行了说明。 - PRCA is a type of anemia in which there is a selective reduction of red blood cell precursors on bone marrow examination.
纯红细胞再生障碍（PRCA）是一类在骨髓检查时血红细胞的初期形式选择性减少的贫血。 - The selective reduction impoverishment of slag from copper smelting with addition of charcoal powder and stirring of inert gas is investigated by the aid of metallurgical analysis, SEM and EDX.
借助于金相分析、SEM和EDX等方法，研究炼铜炉渣加炭粉、通惰性气体搅拌选择性还原贫化过程。 - Development of Selective Reduction Catalysts for Removal of NO x in Combustion Gas
燃烧尾气中NOx选择性还原反应催化剂研究进展 - The amphiphilic N, N-di acylated chitosan could be gained by selective reduction of fully acylated chitosan.
通过对完全酰化产物进行选择性还原，可获得两亲性N，N-双酰化壳聚糖。 - Effect of some metal ions on selective reduction of benzoyl acetone was investigated ( using) NaBH_4 as a reducer.
以NaBH4为还原剂，研究了金属离子对苯甲酰丙酮选择性还原的影响。 - A series of selective reduction catalysts for the removal of NOx in the combustion gas are introduced. Under the presence of higher concentration oxygen and one of the catalysts, NOx can be highly selectively reduced by the residual organic compounds in the combustion gas.
介绍了从燃烧尾气中脱除NOx的一系列选择性催化还原体系，其特色为能在氧浓度较高条件下，利用燃烧尾气中未反应的有机物作还原剂，高选择性地与NOx反应。 - Modification of Cu/ Al_2O_3 Catalyst and Its Catalytic Performance for Selective Reduction of NO
Cu/Al2O3催化剂的改性及其对NO选择性还原的催化性能 - According to the differences in reducibility of major elements in ocean polymetallic nodules, selective reduction smelting of the nodules is conducted in a DC arc furnace using carbon as reductant, obtaining acceptable Mn enriched slag and smelted alloy.
根据大洋多金属结核中各主要元素的还原性差异，用碳作还原剂，在直流电弧炉中选择性还原熔炼大洋多金属结核，获得了合格的富锰渣产品和熔炼合金。 - Experimental and clinical research of inhaled nitric oxide on selective reduction of pulmonary arterial pressure
吸入一氧化氮选择性降低肺动脉压的实验与临床研究 - β-nitrostyrene was used as a model compound of β-nitroolefines in the study of the selective reduction of carbon-carbon double bond with potassium borohydride.
为研究硼氢化钾还原α，β-不饱和硝基化合物时对于碳碳双键的选择性，以β-硝基苯乙烯为底物，考察了反应条件及烯键和苯环上取代基对于反应结果的影响。 - Effect of Transition Metal Ions on Selective Reduction of α-acetyl cyclohexanone
过渡金属盐类对α-乙酰环己酮选择还原产物的影响 - Study on selective reduction of Benzo ( a) Pyrene from cigarette smoke by mesoporous materials
介孔材料选择性降低卷烟烟气中苯并（a）芘的研究 - The catalysis decomposition method. the selective reduction catalysis method and the absorption reduction catalysis method for reducing NOx emissions of lean combustion gasoline engines are briefly introduced.
简述了降低稀燃汽油机NOx排放的催化分解法、选择还原催化法和吸附还原催化法。 - This article has discussed and compared preliminarily about selective reduction affection of NaBH_4 and LiAlH_4.
本文对NaBH4和LiAlH4的选择性还原作用进行了初步探讨和比较。 - The paper reviewed the selenium catalyzed carbonylation reaction such as the carbonylation of carbon, nitrogen, oxygen and sulfur containing compounds and high selective reduction of some compounds based on the Se/ CO/ H 2 O system and introduced some new progress.
综述了非金属硒在含碳、氮、氧、硫类有机化合物中的催化羰基化反应，以及在Se/CO/H2O体系中一些有机化合物的高选择性还原反应，介绍了近期的一些新进展。 - Effect of Some Metal Ions on Selective Reduction of Benzoyl Acetone
金属离子对苯甲酰丙酮选择性还原的影响 - Influence of Preparation Methods on Structure of Tin-Zirconium Solid Solution and Its Catalytic Performance in NO Selective Reduction
制备方法对新型锡锆固溶体催化剂结构及其选择催化一氧化氮还原性能的影响 - Methods The target compounds were synthesized from cyclopentanone via Stork reaction, Mannich reaction and selective reduction.
方法以环戊酮为起始原料，通过Stork烯胺反应、Mannich反应、选择性还原制备目标化合物； - Consequently, the catalytic activity and hydrothermal stability of the catalyst to the selective reduction of NO with propylene in excess oxygen have been improved effectively.
因此，有效地提高了Cu/SO42-/La2O3-ZrO2-Al2O3在富氧条件下对丙烯选择还原NO的催化活性和水热稳定性。 - Structure of the prepared catalyst was characterized by means of BET, XRD, TPR, Py-IR, FTIR, XPS and SEM. The catalytic properties of the material for the selective reduction of NO by propylene in excess of oxygen were further studied.
催化剂的结构通过BET、XRD、TPR、Py-IR、FTIR、XPS和SEM等手段进行表征，并研究了它们在富氧条件下对丙烯选择还原NO的催化性能。 - Selective Reduction of β-Nitrostyrene with Potassium Borohydride
硼氢化钾对β-硝基苯乙烯的选择性还原 - The method of selective reduction of rhodium by normal pressure hydrogen to seperate trace rhodium from iridium solution was studied. The effects of temperature, hydrogen flow rate, reaction time, initial rhodium concentration and concentration of HCl were investigated.
研究了常压氢还原法分离铱溶液中微量铑的方法，并考察了温度、氢气流量、反应时间、铑的初始浓度和溶液中的盐酸浓度等因素对选择性还原铑的影响。 - The main conclusions obtained are as follows: The thermodynamic predominace area for selective reduction of zinc ferrite under CO atmosphere was determined after the thermodynamic calculation and study of the decomposition mechanism.
研究获得如下创新性结论：通过铁酸锌CO还原过程的热力学计算，确定了铁酸锌选择性还原的优势区域，查明了铁酸锌在弱还原气氛下的分解机制。 - The addition of metal ions to the catalytic system improved the activity and selectivity in different degree ( except Sn2+ selective reduction of m-CAN), The different metal ions have different effects.
结果表明，这4种金属离子不同程度的提高了PVP-4Pt/1Ru胶体的活性和选择性（除Sn2+对m-CAN选择性降低外），不同的金属离子对PVP-4Pt/1Ru胶体的修饰作用不同。