Chemical constitution of Pinus kesiya oleoresin from Burma was analyzed by GC-MS. 采用GC-MS联用技术对产自缅甸的卡西亚松松脂化学成分进行了分析和鉴定。
A Study of Structure and Chemical Constitution Conditions of Forging White Iron 白口铸铁锻造的组织及成分条件的试验研究
Research methods: The structure stress analysis is made to the bridge by adopting finite-element software. The fatigue estimation is made to the crack position and the feasible demonstration is done to the reinforcement measures through analysis of chemical constitution by doing chemical experiment to the steel. 研究方法利用有限元软件,对该钢桥进行结构受力分析,通过化学实验对钢材进行化学成份分析,并对裂纹位置进行了疲劳结算,对所采取的加固措施进行了可行性论证。
The chemical constitution of xylo-telinite and collinite-cement obtained from the vitrinite of the Baise lignite, has been determined by using infrared spectroscopic and chemical methods. 采用化学和红外光谱相结合的方法,研究了百色褐煤镜煤质的主要组分&木质结构镜煤和凝胶化基质的化学组成结构。
Studies of the vitrinite of the Baise lignite& ⅱ. the chemical constitution and genesis of xylo-telinite and collinite-cement 广西百色褐煤镜煤质的研究Ⅱ.褐煤结构镜煤和凝胶化基质的化学组成和成因
The chemical constitution, micromorphology, structure, binding force and magnetic properties of the sample films were investigated with the conclusion being as follows: ( 1) Phosphorus content in the film varies with the film thickness and composition of the plating solution; 对试样的化学成分、微观形貌、结构、结合力和磁性进行了分析.得到以下结果:(1)镀层中的磷含量随镀液成分和镀膜厚度的不同而变化;
And the influence of calciferous waste material chemical constitution on their calcinations and sulfur fixation performance were discussed, which provided theoretics bases for on second analysis on sulfur fixation mechanism of calciferous waste material. 并对含钙废弃物的化学成分对其煅烧特性和固硫活性的影响进行了探讨,为进一步分析含钙废弃物的脱硫机理提供理论依据。
Effluents from knitgoods dyeing plant feature complex chemical constitution, deep shade and high organic pollutant. 针织物染色废水的水质复杂,色度深,有机污染物含量高。
The final properties of polymer materials are not only related with the chemical constitution and structure, but also depend on the formation and change of morphosis in preparation process mostly. 高分子材料的最终性能不仅与高分子的化学组成和结构有关,在很大程度上还取决于制备过程中其形态结构的形成与变化。
The structure and chemical constitution, and the influ-ence of beating degree, pH value and alum on their electrokinetic characteristics were discussed in detail. 本文从纤维和细小纤维的结构和化学组成入手,主要论述了纤维和细小纤维的湿部化学特性,并重点探讨了打浆度、pH值和铝盐对纤维素纤维动电特性的影响。
Research progreses in chemical constitution, biosynthesis and metabolic pathways of plant disease resistive material are systematically reviewed in this paper. 本文就近年来对植物抗病性物质的化学组成、生物合成、代谢途径方面的研究进行了综述。
The Influence of Chemical Constitution nnd Condition of Formation on the Structure and Properties of Polyurethane Elastomeric Fibres 软段化学结构和成形条件对氨纶结构性能的影响
The effect of the chemical constitution and the parameter of the control rolling and cooling technique to the mechanical property is analyzed after which the idea is determined. 在确定了工艺思想后,分析化学成分、控制轧制和控制冷却工艺参数对钢筋性能的影响。
It introduces production process of steel slag, analyzes chemical constitution& physical property and strength mechanism of lime-fly ash slag, requirement of lime-fly ash slag for steel slag and its solution are illustrated, matters need attention are putted forward in application of lime-fly ash slag. 主要介绍了钢渣的产生过程,分析了其化学成分和物理性能,以及二灰钢渣的强度机理,阐述了二灰钢渣对钢渣的品质要求和对策,提出二灰钢渣应用中的注意事项。
Through determining the infrared spectrum of the middle result, have proved that the chemical constitution of MS changes. 测定了合成MS过程中的产物的红外光谱图,验证了其化学结构变化。
A study on the change of chemical constitution of acrylonitrile copolymeric fibres at low pyrolysis temperature 丙烯腈三元共聚物纤维在低温热解时化学结构变化的研究
Coal of industrial analysis that coal powders of different compounding rate is made, the chemical constitution of coal powders burned remains are tested, cement mineral system in the remains is analyzed qualitatively and compositions of the cement mineral is calculated. 对不同掺杂比例的煤粉做出煤的工业分析,测试其残余物的化学成分,并以X衍射定性分析残余物中的水泥矿物体系,计算其矿物组成。
This paper introduced the feasibility and the mechanism of wood dyeing, analyzed the effect of the wood structures, physical characters and chemical constitution on wood dyeing, elicited the suggestions to wood dyeing and the developmental direction. 介绍了木材染色的可能性及其染色机理,分析了木材的解剖构造、物理性质和化学组成等对染色效果的影响,提出了木材染色研究的几点建议。
Chemical constitution and microscopic pattern of the inorganic filler in a corona resistant magnetic wire insulating coating was tested and analyzed. 测试和分析了某型耐电晕电磁线绝缘漆中无机填料的化学组成和微观形貌,并测试该电磁线绝缘漆的紫外可见光吸收谱。
In this paper, a cast Be bronze is mentioned in its chemical constitution, designation, properties, application, rudimentary knowledge on metallurgy, processing method, heat treatment and industrial hygiene. 介绍了铸造铍青铜的化学成分、牌号、性能、用途、冶金基础知识、加工方法、热处理工艺和铍的工业卫生措施。
It is about the last discovered TianYang kaolin ore in Guangxi and about the comprehensive analyzation and research its geology survey, resources distribution, chemical constitution, dimension distribution, plasticity, density and crystal pattern. 本文就广西田阳新发现的高岭土矿,从地质概况、资源分布、化学组分、粒径分布、可塑性、黏浓度、晶体形态等物化性能进行了全面的测试和研究。
Physical properties, such as density, refractive index, boiling point and viscosity are related to the molecular weight and to the chemical constitution of a molecule. 物理性质,如密度、折射率、沸点及粘度,与分子量及化学结构有关。
Its chemical constitution and content was identified in the way of GC-MS, and its physical, chemical characteristics and rheological property were studied, in comparison with other fuel oils. 利用GC-MS方法对副产品油中的化学成分进行了定性定量分析,分析其物理、化学特性和流变特性并且和其它燃料油进行了各方面的性质比较。
Utilize the infrared analysis instrument to measure the spectrum to absorb the situation, has analyzed the micro chemical constitution of SiC/ PI resin base composite; 利用红外分析仪测量了光谱吸收情况,分析了SiC/PI树脂基复合材料的微观化学结构;
Study has been carried out on the chemical constitution and physical properties of the building sand made from the heavy slag from the blast furnace and its application to concrete. 研究了用冶炼高炉重矿渣制造的建筑用砂的化学成分、物理性能以及在混凝土中的应用情况。
In order to further improve the efficacy and application scope, People has modified the chemical constitution of DMY, which has become the focus of present research. 为了进一步提高二氢杨梅素功效和应用范围,对其进行化学结构修饰已成为当前研究热点。
The reasons of appearance different phases among base metal, welded seam and heat-affected zone are different chemical constitution proportion of base metal and welding wire and part of metallic elements are melting loss when welded. 母材和焊缝、热影响区出现不同相的原因是由母材与焊丝所含化学成分的比例不同及焊接时部分金属元素烧损所致。
Besides the essential oil, Rhizoma Cyper also contains other main components. The pharmacological activity and chemical constitution of the main components are well worthy of attention and deep research. 除挥发油外,香附中还含有其他大类成分,它们的药理活性以及化学结构如何,值得关注和深入研究。
Chemical constitution and microstructure were tested by XRD, FT-IR, Raman spectroscopy, SEM and TEM. 利用X射线衍射分析、红外光谱分析、拉曼光谱分析、扫描电镜、透射电镜等对其进行了化学结构、微观结构等表征。