replacement reaction
英 [rɪˈpleɪsmənt riˈækʃn]
美 [rɪˈpleɪsmənt riˈækʃn]
网络 置换反应
双语例句
- This article has dealt with the replacement of Fe chips with Fe powder in the reductive reaction of titanyl sulfate solution.
介绍了铁粉代替铁屑在酸解钛液还原反应中的应用。 - Solvent replacement experiment provided direct evidence that there was water-rich adsorption layer and the reaction took place in the layer.
首先用溶剂置换实验验证了纳米反应器的存在且是反应和粒子生长的场所； - Carbon nanotubes were synthesized via a catalyzed replacement reaction at 200 ° C for 12h using metallic Mg, C_2Cl_6 and AlCl_3 as starting materials and benzene as solvent.
用金属Mg、C2Cl6和AlCl3作原料，以苯为溶剂，在200℃下通过催化置换反应12小时，生成碳纳米管。 - Study on Competition Reaction and Replacement Reaction of Metallothioneins with Lead Ion
金属硫蛋白结合铅离子的竞争反应和置换反应研究 - The current methods of preparation for calcium carbonate whiskers, such as carbonation, replacement reaction, urea hydrolysis, thermal decomposition of Ca ( HCO3) 2 and supergravity reaction-crystallization are analyzed and reviewed in the paper.
对目前制备碳酸钙晶须的碳酸化法、复分解反应法、尿素水解法、碳酸氢钙加热分解法和超重力反应结晶法进行了分析和评述。 - As to replacement reaction without gain and loss of electrons, it is unnecessary to use ε-pH diagram for analysis. The electric potential of vertical axis can be changed into concentration to obtain the lgC-pH diagram.
对于不涉及电子得失的复分解反应，除了使用ε-pH图分析问题，也可将竖轴改用来表示浓度变化关系，这样得到了lgC-pH图。 - The fertility and the inducing abnormal histone-to-protamine replacement reaction as well as alteration of nuclear basic proteins could be recovered 10 weeks after withdrawal of drug treatment.
停药10周后，生育力和所导致的组蛋白-精核蛋白取代反应（HPRR）异常现象全部恢复。 - Induced reaction in the process of replacement reaction of cupric salt and its influence on the chemical phase analysis
铜盐置换反应过程中的诱导反应及其对化学物相分析之影响 - Nanoscale microcrystal palladium/ p-Si is prepared by means of chemical replacement, and its catalytic activity for hydrogen evolution reaction ( HER) is investigated.
利用化学置换法在p型Si（111）表面制备了纳米微晶Pd，对其析氢反应催化活性进行了考察。 - Function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably;
阐述了镀液中各组分的作用：络合剂能有效地改变铜、锡的电位，促使初期的置换反应顺利进行； - The silver nanoparticles modified by oleic acid were successfully synthesized by the replacement reaction of silver nitrate with metal sodium in decalin, and the reaction was achieved via ultrasonic irradiation.
在有机介质十氢化萘中，以金属钠、硝酸银和油酸钠为起始原料，通过超声辐射使金属钠和硝酸银发生置换反应，成功制备了油酸表面修饰的Ag纳米微粒。 - Conclusions The interruption of histone-to-protamine replacement reaction ( HPRR) and alteration of nuclear basic proteins induced by low dose gossypol treatment might lead to infertility.
结论服用低剂量醋酸棉酚能阻断组蛋白-精核蛋白取代反应（HPRR）及影响精核蛋白含量，这可能是醋酸棉酚导致不育的重要原因； - Boron isotope fractionation is positive to the silicification intensity and the deficit of 11 B may be resulted from replacement 11 B by Si during the water rock reaction;
水岩作用中硼同位素分馏与硅化交代强度成正相关关系，并且是硅置换11B，造成岩石亏损11B，而呈现低的δ11B值； - In this paper, high conductive copper plated with silver is prepared by chemical replacement reaction, and needle-like wollastonite plated with nickel is firstly synthesized by means of electroless plating.
本文通过化学置换反应制备了高导电性的镀银铜粉，用化学镀的方法首次合成了镀镍针状硅灰石。 - The experiment result shows that after the nickel preplating treatment a catalysis surface will be formed, and this catalysis surface will prevent the replacement reaction to take place effectively in the electroless Ni-P plating bath sloution.
试验结果表明.经过预镀镍处理后，铝表面可获得镍沉积的催化表面.有效防止了在化学镀Ni－P槽液中置换反应的发生。 - And is was found the degree of replacement reaction increased with the advance of time and temperature in raction.
在合成时，反应温度越高，反应时间越长，亲核取代反应越完全。 - Deposition mechanism of electroless plating tin in acid chloride solutions was analyzed theoretically, and three steps were summed up, including period of replacement reaction, coexistence periods of copper-tin codeposition and self-catalyzed deposition, and period of self-catalyzed deposition.
从理论上系统地分析了酸性氯化物化学镀锡的沉积机理，将其归纳为置换反应期、铜锡共沉积与自催化沉积共存期和自催化沉积期三个阶段。 - The K ( TCNQ) thin film was prepared by a method of solid chemical replacement reaction in vacuum. The molecular structure obtained in K ( TCNQ) thin film is the same as that in K ( TCNQ) single crystal and polycrystalline solids.
在真空环境下，首次利用固态化学置换反应制备了K（TCNQ）薄膜，其分子结构与已报道过的K（TCNQ）单晶、多晶相同。 - The decaying kinetics changed in different RCs, indicating that pheophytin replacement influenced the energy transduction and primary photochemical reaction in purple bacterial reaction centers.
说明去镁叶绿素置换影响了细菌反应中心内激发光能传递和原初光化学反应过程。 - A "replacement type" reaction is proposed to account for the cocoloration effect.
提出了“置换型”共显色效应的设想。 - By using Circular Dichroism ( CD) spectroscopy method and Ultraviolet ( UV) absorption spectrophotometry, competition reaction and replacement reaction of metallothioneins with lead ion were investigated.
采用圆二色性（CD）光谱法和紫外（UV）吸收光谱法研究金属硫蛋白结合铅离子的竞争反应和置换反应。 - The monolayer dispersed Pt/ Ni bimetallic catalyst was prepared through a simple replacement reaction, and its catalytic activity for the hydrogenation of cyclohexene, styrene, acetone, and butyl aldehyde was tested.
利用金属置换反应制备了表面单层分散型Pt/Ni双金属催化剂，并测定了该催化剂对环己烯、苯乙烯、丙酮和丁醛气相加氢反应的催化性能。 - SERS property of the silver branched nanostructures was examined and hollow Ag/ Au alloy branched nanostructures were prepared through galvanic replacement reaction based on silver template.
本文考察了此高支化度银纳米结构的SERS性能，并且以此结构为模板，通过置换反应制备了具有空心结构的Ag/Au合金海藻状纳米结构。 - First, SiC particles were coated by a layer of amorphous glass phase, and then coated with copper powders by chemical replacement reaction method.
本文通过粉体包裹工艺，先在SiC颗粒外面包裹一层非晶玻璃相，再在包裹有玻璃相的SiC粉体采用化学置换法包裹单质铜。 - To prepare various micro/ nano-materials through galvanic replacement reaction of a single metal precursor solution with a more active metal is a simple way, and this method is used widely.
由单一金属前驱体溶液与较活泼金属间的置换反应制备各种微-纳米金属材料，是近年来广为采用的一种简便方法。 - The replacement reaction between magnesium alloy and molten salt can produce active atoms, which was divided into two stages.
镁合金与熔盐能否发生置换反应产生活性原子可分为二个阶段。