This paper has introduced method of specimen preparation and structure showed about this Ti(C, N) based cermet. Its microstructure and TEM phase has been discussed and compared.
探讨了这种材料金相试样的制备方法、显微组织浸蚀剂的选择，并对其光学金相组织特征与TEM相进行了论述和对比。
The alumina ceramics is gel-mould cast with low toxic N methylolacrylamide system. This paper reports the investigation on the preparation of alumina suspension and its solidification process.
采用低毒的N羟甲基丙烯酰胺体系凝胶注模成型氧化铝陶瓷，研究了该体系下浓悬浮体的制备及固化过程。
Unlike common amino acids, the preparation of these N-protected precursors requires rather elaborate synthetic schemes typically starting from the parent heterocycles.
与普通的氨基酸不同，这些N 段保护前体的准备需要更加复杂的合成方案，典型的合成从母链开始。
In purifying phase, the extracts were disposed by silica gel column chromatography and preparation lamella chromatography, then crystaled by N-Hexane.
纯化阶段，硅胶柱色谱及制备型薄层色谱处理提取物，正己烷沉淀结晶。
In this paper, the preparation and electrochemical characteristics of carbon black microelectrode modified by cobalt (II) complex with N-salicylidene glutamic Acid are studied.
研究了水杨醛谷氨酸合钴修饰碳黑微电极的制备方法和修饰电极对一氧化氮的电催化氧化性能。
The invention relates to a new preparation method of intermediate of (S)-N- benzyl-3-acetyloxethyl pyrrole ester of calcium channel blocker barnidipine hydrochloride.
本发明涉及一种钙离子拮抗剂盐酸巴尼地平中间体（S）-N-苄基-3-乙酰乙氧 基吡咯烷酯的新的制备方法。
By controlling the hydration of alkoxide, and with n-butanol azeotropic distillation and ethanol rinsing methods, the preparation process of superfine titania powder was investigated in detail.
利用控制醇盐水解的方法，分别采用正丁醇共沸蒸馏和乙醇洗涤这两种工艺，详细研究了超细二氧化钛粉体的制备过程。
The experimental results show that peat composed of rotton mosses and its preparation can promote the assimilation, utilization and rational distribution of nutrient (N, P and K).
实验结果表明，草炭与制剂可以促进养分的吸收利用与合理分配。
The influence of preparation conditions such as activated temperature and time on yield, specific surface area and adsorption behavior towards n-butane thiol was studied.
研究了聚丙烯腈基活性碳纤维的制备条件，如活化温度、活化时间对产品收率、比表面积及对正丁硫醇吸附与脱除性能的影响。
The effects of orthophosphoric acid concentration in precursor preparation with n pentanol as reductive agent on vanadium catalyst behavior were studied.
实验考察了以正戊醇为还原剂的前驱体制备过程中磷酸浓度对催化剂性能的影响。
The method of preparation of the key intermediate, 4 amino 1 methyl 3 n propylpyrazole 5 carboxamide(6)was improved.
改进了重要中间体4氨基1甲基3 正丙基吡唑5酰胺（6 ）的合成工艺。
Preparation of FeMo cofactors containing single and double Mo was related with basicity of N-methylformamide.
固氮酶单、双钼铁钼辅基的制备与N-甲基甲酰胺碱度有关。
Abstract N-acetylneuraminic acid certified reference material was separated by semi-preparation HPLC.
摘要采用半制备液相色谱法制备 N- 乙酰基神经氨酸标准物质。
The relationship between incidence of fusarium wilt in chilly and the amount and preparation of N. P. K fertilizer was studied on the bases of soil chemical analysis.
在土壤化学分析的基础上研究分析用不同n、P、K配方施肥与辣椒枯萎病发生的关系。
The invention discloses a cyclic n-heterocyclic double-carbene metal complex which is connected through alkyl chain, a preparation method and the application.
本发明公开了通过烷基链连接的环状氮杂环双卡宾金属配合物及其制备方法与应 用。
The preparation process of N-methyl-N'-nitro guanidine belongs to the field of farm chemical preparing technology.
一种N-甲基N’-硝基胍的合成方法，属于农药中间体技术领域。
The preparation process of N-methyl-N'-nitro guanidine belongs to the field of farm chemical preparing technology.
一种N-甲基N’-硝基胍的合成方法，属于农药中间体技术领域。
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