查询词典 preparation

The preparation of underbase is cement:fly-ash:hoggin=3:10:90, the preparation of base is cement:fly-ash:hoggin=4.5:10:90. Compared to cement hoggin, the proportion of cement has been reduced by 1%, the weight of mixture has been reduced by 5%.

对水泥粉煤灰稳定碎石材料作为路面基层材料的配合比设计及其性能进行了研究，设计底基层的配合比为水泥：粉煤灰：碎石＝3：10：90，基层配合比为水泥：粉煤灰：碎石＝4.5：10：90，较水泥稳定碎石降低水泥剂量1%左右，并节省混合料用量5%。

Various technologies, including direct or indirect methods, for the preparation of hydrogen fluoride and white carbon black from the byproduct fluosilicic acid of phosphate fertilizer are introduced, advantages and disadvantages of all the preparation methods are concluded.

介绍了直接法和间接法由磷肥副产的氟硅酸制备氟化氢和白炭黑的多种技术，总结了各种制备方法的优缺点。

Advance Preparation Experts and organizations have emphasized the importance of advance preparation.4,18,26 Medical centers must review whether performance of an emergency hysterotomy is feasible at their center, and if so, they must identify the best means of rapidly accomplishing this procedure.

预案 许多专家和医疗组织都强调预案的重要性，医疗中心必须客观评估是否具有行急诊剖宫产能力，如果施行了剖宫产，他们必须选择最佳方法尽快完成手术。

Considering complex preparation of kerogen in the petrochemical field, This paper introduces a program of kerogen complex preparation control system based on CAN bus.

本文针对石油化工领域中干酪根复杂制备过程，提出了一种以CAN 总线为基础的干酪根自动制备控制系统方案设计。

Preparation and application of GABA are concerned.Preparation of GABA by Lactobacillus brevis was studied in detail in this dissertation.

本文系统地研究了利用短乳杆菌生物法制备GABA的过程及相关工艺。

In order to reach the purpose of using pre-laser cladding method preparation of Ni-based amorphous alloy coatings on 45 steel substrate surface by the method was carried out. The principles of the three clusters and the amorphous line of the law of composition rules were used. The Ni59.35Nb34.45Sn6.2 alloying powder which has a great glass-forming ability in conventional preparation methods of amorphous alloys was chosen. In the protection of atmosphere, the amorphous surface coating was prepared. The microstructure, micro-hardness and performance of the different output power of the laser cladding were analyzed.

中文摘要：为了达到研究预置激光熔覆可以在45钢上制备Ni基非晶合金涂层的目的，采用非晶形成能力三判据原则及非晶成分团簇线定律法则，选择了采用常规非晶合金制备方法中具有极大玻璃形成能力的Ni59.35Nb34.45Sn6.2合金粉末，在保护气氛下，制备非晶涂层，并对不同输出功率下得到的涂层进行微观组织和结构表征及性能测试。

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

The main content of this thesis includes: studies on the preparation, surface-modification mechanism and electrochemical performance improvement of spinel LiMn〓O〓; Preparation and properties of 5V cathode materials 〓; Physical properties and electrochemical performance studies on layered 〓 for lithium ion batteries.

本论文的主要研究内容包括：正尖晶石LiMn〓O〓的制备、表面修饰改性机理以及电化学性能的改善；具有正尖晶石结构的5伏正极材料〓的合成与性能探索；具有层状结构的镍锰基化合物〓的物理性质与其作为锂离子电池正极材料的电化学性能以及该材料的产业化探索。

Luminous paint and a preparation method thereof are disclosed, belonging to paint compound based on inorganic materials and particularly the technical filed of the preparation of luminous paint compound.

一种发光涂料及其制备方法属于基于无机物质的涂料组合物，特别是发光涂料组合物的制备技术领域。

Methods Samples of Cerinate Porcelain Veneers were prepared in different thickness(0.5mm、0.75mm、1.00mm)and different Vita shade(A1、A2、A3).Luting resins of different colors were used to lute these samples on teeth surface with different preparation depth.Colorimeter was used to measure the L*a*b* of the teeth surface without preparation and after covering with Cerinate Porcelain Veneers.

制作不同颜色（A1、A2、A3色）不同厚度（0.50mm、0.75mm、1.00mm）的Cerinate瓷贴面，将其用不同颜色的粘结树脂粘固到对应的牙齿预备面上，用测色仪分别测量牙齿预备前及粘固了Cerinate瓷贴面后牙面的L*a*b*值，比较两者的差异。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。