查询词典 molecular

The applications of molecular simulation in molecular imprinting technology are reviewed.

综述了分子模拟在分子印迹技术中的应用。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

Themain contents of this dissertation are as follows:(1) The quality analytiedal results of chitosan are as follows: water for 15.205%;degree of deacetylation 92.671%; the weight average relative molecular weight ofchitosan 195900; the viscosity average relative molecular weight of chitosan 194100;and the decomposing temperature 298℃. The infrared ray IR spectra of chitosanshows that the feature-absorbing band of chitosan amido was 1601cm~(-1), that ofβ-indican bond was 986cm~(-1). The results of the X-ray diffraction of chitosan indicatesthat its degree of deacetylation and degree of crystal are both big.

本文的主要内容如下：(1)对壳聚糖的质量进行分析，其水份为15.205％，脱乙酰度为92.671％，重均分子量为195900，黏均分子量为194100，分解温度为298℃，壳聚糖的红外光谱表明，壳聚糖—NH_2的特征吸收峰为1601cm~(-1)，β-糖苷键的特征吸收峰为986cm~(-1)，壳聚糖的X-衍射图表明壳聚糖原料的脱乙酰度和结晶度均较大。

The molecular structural parameters of indophenol and its derivatives were calculated by semi-empirical molecular orbital quantum chemical method.

以半经验分子轨道方法计算吲哚酚衍生物的分子结构参数。

The institute is an interdepartmental organization of molecular biologists designed to promote research and teaching at UCLA in the area of molecular biology.

该研究所是分子生物学家的跨部门组织，致力于促进加利福尼亚大学洛杉矶分校分子生物学领域科研和教学。

The Company produced for each grade polyester molecular structure, molecular weight, and the disproportion of the response of isocyanate and other aspects of performance for the full study, various brands of products have corresponding polyester counterparts to ensure that the products are Excellent physical and chemical properties, while in the production process are of excellent performance.

本公司生产的每牌号聚酯分子结构，分子量，歧化度以及与异氰酸酯的反应性能性等方面都进行了充分的研究，各类制品都有相应牌号的聚酯对应，以保证制品有优异的物理及化学性能，同时在生产过程中有优异工艺性能。

In constitutional isomerism, the molecular formula and molecular weight of the substances are the same, but their bonding differs.

在组成同分异构体现象中，分子式和分子量都相同，但化学键不同。

This test showed that P4.1 and P4.2 could apply to molecular identify of kava germplasm materials. P4.1 and P4.2 have some use in the true and false molecular identify of kava.

这说明引物P4.1和P4.2为卡瓦胡椒特异SCAR引物，可用于卡瓦胡椒的分子鉴定，这对卡瓦胡椒种质资源的真伪鉴定有一定帮助。

Based on the characteristics of molecular structure,the relationship between heat of combustion, heat of formation of aliphatic ketone and its molecular structure is studied with the graph theory.

本文用图论方法探讨了气态脂肪酮的燃烧热和生成热与分子结构的关系，提出了一个结构基础明确的定量关系。

The Si/Al ratio of NaY molecular sieve was determined by an empirical formula of lattice constant obtained by extension function method of X-ray diffraction and framework Si/Al ratio of NaY molecular sieve determined by solid nuclear magnetic resonant spectrum method.

前言晶胞参数是决定晶体结构的重要参数之一，Na Y超稳分子筛属立方晶系，由于 Na Y超稳分子筛骨架硅铝比受许多条件的影响，如投料比、晶化温度、晶化压力和晶化时间等。通过研究发现分子筛骨架的硅铝比与其晶胞参数相关，而分子筛的硅铝比可作为合成分子筛产品质量的控制指标 [1] 。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。