生物胺是一类含氮的脂肪族或杂环类低分子化合物。
Biogenic amine is a kind of low molecular compounds belonging to nitric fatty group or heterocycle group.
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。
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。
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.
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 composition and source of lower molecular weight compounds in coal and several chemical structure models of coal were introduced.
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。
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.
根据分子轨道理论，煤中低分子化合物的氧化自燃反应发生在电荷密度较大的原子部位，计算得到了煤有机质中低分子化合物发生氧化自燃反应的活性点。
According to the molecule orbital theory, the oxidation spontaneous combustion reaction of the low molecular compound in coal takes place at the atoms which charge density is thick.
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。
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.
我们通过“一锅法”合成不对称化合物，缩短了化合物上一条侧链的方法来降低分子的对称性。
We have synthesised unsymmetrical compounds through a "one-pot"process, achieving reduced symmetry by shortening one side chain of target compound.
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.
结果表明，采用低分子量反应性化合物作相容剂，共混物的拉伸强度提高，但冲击强度无改善。
The results show that: using low molecular weight reactive compounds as compatibilizers, the tensile strength of the blends is raised, but the impact strength is not improve.
黄酮类化合物是一类低分子天然植物成分，这类化合物具有共同的母核c6 - C3 - C6。
The flavonoid is a kind of low molecular natural plant ingredient, and this kind of compound has common parent nucleus C6-C3-C6.
DFA为有机低分子量化合物，不溶于水，但极易溶于煤油，在煤油中的油溶率高达99.9%，而且对原油粘度基本无影响。
DFA is a low molecule organic compound, with the oil solution ratio as high as 99.9%. At the same time, it plays no role in the viscosity development of crude oil.
本发明提供了一种新型的含有低分子量的弹性体替代化合物的可降解口香糖基质，该化合物一般应用于口香糖配方。
The invention provides a novel degradable gum base comprising low molecular weight elastomer replacement compounds which are generally applicable for chewing gum formulations.
前言： 研究了大气中低分子量醇类化合物的气相色谱测定方法，进行了线性范围、精密度和准确度实验。
Based on gas chromatography a method was established to assay alcohols in air. The linearity, precision and accuracy were tested. It has been proven to be a simple and easy to operate analytic method.
适量饮用中国白酒有益健康的佐证，中国白酒中含有大量微量元素、低分子有机酸、高级脂肪酸及乙酯、酚类化合物、杂环类化合物等。
Chinese liquors contain large amount of trace elements, low molecular organic acids, higher fatty acids, ethyl esters, phenolic compounds, and heterocyclic c...
适量饮用中国白酒有益健康的佐证，中国白酒中含有大量微量元素、低分子有机酸、高级脂肪酸及乙酯、酚类化合物、杂环类化合物等。
Chinese liquors contain large amount of trace elements, low molecular organic acids, higher fatty acids, ethyl esters, phenolic compounds, and heterocyclic c...
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