The critical point of chemical reduction was the option of reducing agent.
化学还原法的关键在于还原剂的选择。
Superfine silver powder was prepared by water-hydrazine hydrate chemical reduction method.
介绍了电子浆料用超细银粉的研制，采用的是水合联氨化学还原工艺。
The feasibility of prepared nanometer-scale copper powders by chemical reduction method was studied.
探索用化学还原法制备纳米铜粉的可行性。
The preparation of nano-copper powders by chemical reduction were studied under ultrasonic field in the solution.
对超声场辅助增强作用下的液相化学还原法制备纳米级铜粉的工艺过程和条件进行了研究。
This paper deal with a new method of preparing nano-silver powder by resin absorption and chemical reduction method.
研究了一种通过树脂吸附—化学还原的方法制备纳米银粉的新方法。
The preparation of nanometer copper powder by chemical reduction combined with homogeneous precipitation method is studied.
研究了以化学还原法与均匀沉淀法相结合的方法制备纳米铜粉。
Sliver nanoparticles were synthesized by chemical reduction route applied silver nitrate and butanediamine as raw materials.
以硝酸银和丁二胺为基本原料，采用化学还原方法合成了银纳米粒子。
The advantage of catalytic hydrogenation over chemical reduction is that the product has higher purity quotient and is separated more easily.
与化学还原方法相比催化氢化的优点在于产品纯度高，易分离。
Using ascorbic acid as reducing agent and gelatin as dispersant, the spherical ultra-fine silver powder was synthesized by the chemical reduction method.
采用化学还原法，以抗坏血酸为还原剂，明胶为分散剂制备了球形超细银粉。
The project made studies on the manufacturing process of the bright nanometer Ag powder, and fixed the process route of chemical reduction-mechanical ball milling.
本项目对纳米光亮片状银粉的制备工艺进行了研究，确定了化学还原—机械球磨的工艺路线。
Fe-Ni nano-alloy was synthesized by chemical reduction, and the result of transmission electron microscopy(TEM) shows that the diameter of particles is very small.
采用液相还原法制得铁镍纳米合金，TEM测试结果表明该合金粒径小。
The advantages and disadvantages of the catalysts prepared by rapid quenching method, chemical sediment method, and chemical reduction impregnation method were discussed.
阐述了淬冷法、化学沉积法、 化学还原浸渍法制备的非晶态合金催化剂的优缺点。
Four different categories of metallic complex colloids were prepared by chemical reduction, and studied on their absorption spectrum, formation mechanism and SERS-activity.
本文研究了四种金包裹银的复合胶体的制备，并对其吸收光谱、形成机制以及表面增强拉曼光谱（SERS）活性进行了讨论。
Four preparation methods for aromatic amine were reviewed in the paper: reduction of metals, catalytic hydrogenation reduction, hydration hydrazine reduction and electro-chemical reduction.
综述了还原芳香族硝基化合物制备芳胺的主要方法，包括催化加氢法、金属还原法、水合肼还原法、电化学还原法等。
The article analyzes the main problem of catalytic reduction and chemical reduction, proposes the idea for further study and summarizes qualitative and quantitative analysis of the products.
本文对催化还原法和化学还原法存在的主要问题进行了分析，提出了进一步研究的设想。综述了产物的定性和定量分析。
Last year's badly handled closure of Senegal's biggest chemical plant has contributed to a reduction in industrial output.
去年塞内加尔最大的化工厂在经过糟糕斡旋后的倒闭使国家工业产量减少。
These two technologies breakthrough significance of environmental protection, thermal chemical synthesis of biofuels has prominent reduction and grams haze function.
这两项技术突破的环保意义在于，热化学合成的生物燃料具有突出的减排与克霾功能。
A chemical substance that prevents or slows a cathodic or reduction reaction.
一种阻止或减缓阴极反应的化学物质。
The main treatment methods of spent electroless nickel plating solution include chemical deposition, catalytic reduction, electrolysis, ionic exchange, etc.
化学镀镍废液的处理方法主要有化学沉淀法、催化还原法、电解法、离子交换法等。
The formula of final error in the oxidant reduction titration is deduced according to the principle that the inconsistency of titrating final and chemical calculating point leads to the final error.
根据滴定终点与化学计量点不一致而导致终点误差这一原理，推导出氧化还原滴定的终点误差公式。
Recently deep researches on new methods of sludge reduction are conducted, based on chemical oxidation and metabolic uncoupling.
最近，基于化学氧化和解偶联的污泥减量新方法得到更深入研究。
Conclusion: Cost reduction for working hours, chemical waste disposal and laboratory space.
结论：节省工作时间降低成本，无需处置化学废液和节省实验空间。
In this paper mechanical polishing; Chemical polishing and hydrogen reduction methods used im cleaning bearing steel surface for oxygen determination have been studied.
本文研究了用机械抛光、化学抛光和氢还原法处理轴承钢表面对测定氧的影响。
Chemical properties of stability, with a total reduction of carbon barium sulfide.
化学性质稳定，与碳共热还原为硫化钡。
During the brewing process of catalyzed wine, a series of complicated physical and chemical reactions such as oxidation, reduction, etherification and association occur.
沉缸酒在发酵过程中，发生了一系列复杂的物理化学变化，如氧化、还原、酯化、缔合等，同时伴随着色泽、成分的变化及分子缔合作用。
This article refers to what PPD can undermine the special structure of thick crude oil, and crude oil viscosity and pour point reduction in the chemical agent.
本文所说降凝剂是指能破坏特稠原油的结构力，使原油粘度和凝点降低的化学剂。
Some kassite is found in the red mud, and its crystal parameters are determined. The chemical cause for the reduction of caustic soda losses is also analysized.
在溶出赤泥中发现了羟基钛酸钙，并测出了它的晶体参数，同时还分析了碱耗降低的化学原因。
In gasification section, hot carbocoal and vaporization agent after reduction, oxidation and so on a series of chemical reactions that produce gas, called sublimation gas.
在气化段，炽热的半焦和汽化剂经过还原、氧化等一系列化学反应生成的煤气，称为气化煤气。
In gasification section, hot carbocoal and vaporization agent after reduction, oxidation and so on a series of chemical reactions that produce gas, called sublimation gas.
在气化段，炽热的半焦和汽化剂经过还原、氧化等一系列化学反应生成的煤气，称为气化煤气。
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