The CS 2 soluble fractions from Pingshuo, Datong and Shenfu bituminous coals were analyzed using GC/MS and their chemical constituents and structural characteristic were studied.
利用气相色谱 质谱联用 (GC MS)技术测定了平朔、大同和神府三种烟煤中CS2 萃取物的成分 ,对其化学组成及结构特征进行了对比研究。
This paper introduces the application,chemical constituents,extraction processes and determination methods for active components of honeysuckle flower,and provides the scientific basis for further study.
系统介绍金银花的应用开发、化学组成以及有效成分的提取工艺和测定方法 ,为今后的深入研究提供科学的依
The chemical constituents of the seeds in Sophora viciifolia Hance.
)种子的化学组成,测定了纤维素、粗脂肪、粗蛋白、淀粉、苦参碱相对于绝干狼牙刺种子的质量分数。
Analysis of chemical component of biomass-based tar by GC/MS;
GC/MS法分析生物质焦油的化学组成
Study on characteristics of chemical component and agrochemistry behavior of slog containing silicon;
含硅熔渣的化学组成特征与农业化学行为研究
The changing characteristics and chemical components and origin of acid rain in Xiangtan urban area are analyzed according monitoring data of precipitation quality from 2001 to 2005.
根据2001~2005年湘潭市城区降水环境质量监测数据,对湘潭城区酸性降水的变化特征、离子化学组成、变化趋势和酸雨成因进行了分析。
Growth characteristics and chemical compositions of Phaeodactylum tricornutum under different nitrogen concentrations;
不同氮浓度下三角褐指藻生长特性和化学组成(英文)
Study on chemical compositions and fiber characteristics of imported instrustry conifers;
对外引工业用针叶树种木材化学组成与纤维形态的研究
The chemical compositions,fiber morphology and physical pulping characteristics of Broussonetia papyrifera bark produced in dry-hot valley of the Jinshajiang River were analyzed.
对金沙江干热河谷区构树韧皮纤维的化学组成、纤维形态和成浆物理性能进行了分析,结果表明:构树韧皮的木素含量低,纤维素含量较高,达43。
The composition of heat curable vacuum-impregnators,particularly in the fields of methacrylate impregnation sealants,their ingredients and recent technical development were briefly discussed in this paper.
特别介绍了其中甲基丙烯酸酯型浸渗剂的有关化学组成及其技术发展的现状。
The influence of composition was investigated on performance of the monolithic catalysts prepared by impregnation on wash-coated monolithic support.
利用改性Al2O3涂层浸渍负载活性组分制备整体式催化剂,重点考察化学组成对整体式催化剂性能的影响。
The reaction distillate from synthesis of geranylacetone was analyzed through GC and GCMS to investigate its composition as well as reformation mechanism.
通过GC和GC MS,研究了香叶基丙酮合成反应过程中馏出物的主要化学组成及其特征。
The science of the chemical composition of the universe.
宇宙化学研究宇宙的化学组成的科学
(chemistry) the existence of different kinds of crystal of the same chemical compound.
（化学）不同种的晶体拥有同一化学组成。
Study on Polysaccharide Chemical Content of Sea Cucumbers
不同海参粗多糖的化学组成成分研究
The biochemical constituents of fossil organisms.
生物体化石的生物化学组成
The Comprehensive Analysis on the Chemical Consistent of Precipitation and the Formation of Acid Rain at Chengdu Urban Area;
成都市区降雨化学组成及酸雨成因综合分析
(chemistry) variability in chemical composition without variation in crystalline form.
结晶形式不变而化学组成改变的现象。
the chemistry of copper
铜的化学组成、 性质和反应.
chemical structure,properties(property )and reactions of a particular substance
某物质的化学组成、性质和反应
Graphite is chemically allied to diamond.
石墨和金刚石在化学组成上有联系。
STUDY ON CHEMICAL COMPOSITIION OF YUAN DYNASTYCELADON FROM BAODING KILN SITE IN LISUI DISTRICT OF ZHEJIANG PROVINCE
A research into blanching s effects on papaw s chemical substance;
漂烫对木瓜主要化学组成的影响研究
Studies on Chemical Compositions of Natural Colloids and Their Biological Effects
天然胶体化学组成及其生物效应研究
Analysis on the Chemical Composition and Contents of Heavy Metals in Two Shellfishes
2种贝类化学组成和重金属含量分析
The Chemical Components in Air Condensate Water at Different Urban Regions
城市不同区域空气冷凝水的化学组成
GC-MS Analysis of Essential Oil from Spuriopimpinella brachycarpa
山芹菜籽精油化学组成的GC-MS分析
Separation into constituents by chemical reaction.
分解通过化学反应分离成各组成成分
The chemicals that make up D-N-A are nucleic acids.
组成DNA的化学成分是核酸，
The molecular constitution and chemical change of the precursor of the pigment from Peri- strophe baphica by LC-NMR technique
山蓝色素前体的分子组成和化学变化