Biogenic amine is a kind of low molecular compounds belonging to nitric fatty group or heterocycle group.
生物胺是一类含氮的脂肪族或杂环类低分子化合物。
Beams of electrons can help clean water and air by breaking down pollutants into different molecular compounds.
电子束可以把污染物分解成不同的分子化合物，从而帮助清洁水质和空气。
Historically it has been customary to treat coordination compounds as a special class separate from molecular compounds.
历史上习惯于把配位化合物作为特殊的一类与分子化合物不同的化合物分别对待。
It improved the soil granular structure in a short time, since high molecular compounds naturally degraded into organic matters.
同时，高分子经过自然降解转化为有机物质，可在较短时间内改善土壤结构。
The results indicate that low molecular polymers and small molecular compounds contained in the polymer were removed by the method.
实验结果表明，聚醚氨酯经该法提纯后其力学性能有了显著的提高。
A polymer is a substance of high molecular weight, well above the size of the compounds considered so far.
聚合物是一种高分子的物质，其大小远远超出迄今所提到的各种化合物。
Composed primarily of triglycerides which are molecular weight compounds made up primarily of fatty acids.
构成主要的甘油三酸酯，它的分子量化合物构成主要的脂肪酸。
Enzymes are large molecular weight compounds.
酶是高分子化合物。
This study will provide assistance and guidance to further understand molecular structure of sulfonylurea and its herbicidal activity and to design new compounds.
该研究为进一步理解磺酰脲类的分子结构、药物活性并设计新的分子提供了帮助和指导。
This article has presented a modified molecular connectivity indices used in the QSARs research of the aqueous solubilities of heterocyclic nitrogen compounds.
本文采用一种修正的分子连接性指数研究了氮杂环类化合物水溶解度的定量结构性质关系。
The dielectric anisotropy of these compounds varies from 60 to 70, depending on the detailed molecular structures.
这些化合物的介电各向异性与它们的具体分子结构有关，一般在60到70之间变化。
As the important part of coal organic structures, low molecular weight compounds in coal and its effect on coal conversion features has been increasingly received interests recently.
煤中低分子化合物作为煤有机质的重要组成部分，日益受到人们的广泛关注。
Group contribution method can be used not only to estimate the properties of compounds, but also in computer-aided molecular design (CAMD).
利用基团贡献法可预测化合物的性质，还能用于化合物的计算机辅助分子设计(CAMD)。
This paper analyzes shell electron pair repulsion theory , valence-bond theory and molecular orbital theory on molecular structure of noble gas compounds.
对稀有气体化合物的分子结构分别用“价层电子对互斥理论”、“价键理论”和“分子轨道理论”进行了分析处理。
Because the carbonyl compounds in oxidized fats are of relatively high molecular weight, they can be separated by a variety of techniques from lower molecular weight volatile carbonyl compounds.
因为在氧化的脂肪中的羰基化合物分子量都比较高，它们可通过多种技术从低分子量挥发性羰基化合物中分离出来。
Nitro compound: Any of a class of chemical compounds in which the nitro group (-no2) forms part of the molecular structure.
硝基化合物：分子结构中含有硝基(-NO2)的任何一类化合物。
The composition and source of lower molecular weight compounds in coal and several chemical structure models of coal were introduced.
介绍了煤中低分子化合物的组成和来源、几种煤化学结构模型以及低分子化合物的主要研究方法。
The calculation of molecular formula of compounds was described by13C NMR (com, DEPT) data in this paper. It is a useful method for unknown compounds.
介绍了用13cNMR (COM,DEPT)数据计算化合物的分子式，该方法有利于未知化合物的分子式计算。
The proposed model can be used not only to reveal the quantitative relation between flash points and molecular structures but to predict the flash points of organic compounds for chemical engineering.
该方法的提出，不仅揭示了有机物闪点与分子结构之间的定量关系，而且为工程上提供了一种预测有机物闪点的新的有效方法。
Biogenic amine is a kind of low molecular weight compounds containing nitric fatty group or heterocycle group. They have biological importance in vegetable, microbial and animal cells.
生物胺是一类含氮的脂肪族或杂环类低分子化合物，对动植物和微生物活性细胞有重要的生理作用。
Low molecular weight compounds of coal is generally defined as those organic compounds with MW below 500 destributing in skeleton structure of coal macromolecular material.
煤中的低分子化合物一般是指分散于煤的高分子主体结构中的分子量小于500的有机化合物。
Researchers have also been exploring molecular magnets made from purely organic compounds, or by combining organic components with metal ions.
研究人员也一直在探索用纯有机化合物，亦或是由金属离子来结合有机组分制成分子磁体。
And then there have been more and more researches about secretory structure, pharmacological compounds, and fast propagation of Hypericum l. on molecular level.
因此近年来对该属植物的分泌结构、具药理作用的化学成分、快速繁殖以及分子水平的研究越来越多。
In the course of analyzing the full-scan mass spectrum, the compounds with molecular weight 548 and 396 are founded to be never reported.
在质谱全扫描图的分析过程中，发现了分子量分别为548和396的尚未见报道的成分。
In this paper the author (discusses) these compounds from the molecular structure, the electron-induced, the sensing properties of anions and the (selectivity of F~-.
本文就可作为F- 可见光谱分析显色剂的新型超分子化合物，从分子结构、电子诱导、对阴离子的显色属性和对F-选择性等方面做了评述。
So in the eye of a scientist, a fresco on the wall is no longer a graphic humanistic picture but a coat of compounds of different molecular formulae.
于是，在科学家眼中，墙上的壁画便不再只是生动的人文景象，而成了具有不同分子式的化合物涂层。
The results showed that the phase transition of model compounds and polymers depend upon molecular structure, conjugated chain and molecular flexibility.
研完了分子链的柔性、分子结构和共轭度对中介相转变温度的影响。
The molecular structure, configuration and the environmental effect on the fluorescence emission of organic compounds are tremendous important.
有机化合物的结构、构象和环境效应对发光化合物的荧光发射具有重要的影响。
Low molecular weight amines are important raw materials for synthesis of nitrogen_containing organic compounds.
低分子量的胺是合成含氮有机化合物的重要原料。
Low molecular weight amines are important raw materials for synthesis of nitrogen_containing organic compounds.
低分子量的胺是合成含氮有机化合物的重要原料。
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