查询词典 dispersion

Using pentaerythritol as initiator, boron trifluoride diethyl etherate as catalyst.dichloroethane as dispersion agent, the chloride polyether polyol is synthesized based on the mechanism of cationic ring-opening polymerization of epiclilnrohyclrin.The azide polyether polyol is synthesized, in DMF through A and sodium azide, and the non-reported azide energetic curing agent is synthesized through the adduction of B and IIDI.

以季戊四醇为起始剂，三氟化硼乙醚为催化剂，1，2—二氯乙烷为分散剂，环氧氯丙烷经阳离子开环聚合反应制成氯化聚醚多元醇，A在N，N—二甲基甲酰胺中与叠氮化钠反应制得叠氮聚醚多元醇，B与六亚甲基二异氰酸酯加成反应制得未见文献报道的叠氮固化剂。

The spatial distribution dispersion rules of Evodia meliaefolia population and Camellia oleifera population were also analyzed by using the geographic information system software Arcview3.2 assembled with R2V by the way of substituting temporal change with spatial difference.

本文以位于广州市内的白云山风景名胜区森林植被中的芳香植物楝叶吴茱萸群落为研究对象，在调查样地设置50个10 m × 10 m的样方，应用相邻格子法进行调查，对楝叶吴茱萸群落的组成及结构特征、主要树种的分布格局类型进行了分析；采用R2V、Arcview3.2等地理信息系统软件以&空间差异替代时间变化&的方式，对楝叶吴茱萸和油茶种群空间扩散规律进行模拟分析，从而探讨森林景观的物种流功能。

To study explosive dispersion of liquid fuel is of importance for developing FAE weapons.

液体燃料的爆炸抛撒研究是云爆武器研制的重要课题。

At last, this article discusses the dispersion mechanism of the poly ferric serious flocculants based on the previous works.

本文最后在前人的基础上对铁系絮凝剂的作用机理进行了探讨。

Abstract］ Objective To Treating the nano-SiO2 particle by silicon coupling reagent, functionalize the SiO2 by making double bond on its surface. Polymerizing on the surface of nano-SiO2 surface by the method called emulsion polymerization, the nano-SiO2 is covered by polymer to get the PMMA-KH-570-nano-SiO2 complex material. Test the surface structure of the surface of nano-SiO2 by FTIR, and test sort of its mechanical performances.Comparing the treated nano-SiO2 which is directly dispended in the PMMA emulsion with the SiO2 without any treatment, we are trying to find an effective method which can not only increase the dispersion of SiO2, but also improve the mechanical performance of the artificial teeth.

目的 通过硅烷偶联剂KH-570处理SiO2纳米粒子，向其表面引入双键使其功能化，采用乳液聚合的方法在SiO2纳米粒子表面进行接枝聚合，实现高分子对SiO2纳米粒子的表面包覆处理，制得PMMA－KH-570－SiO2纳米复合材料，采用FTIR对SiO2纳米粒子表面结构进行了表征研究，并且测定了它的多种机械性能，与表面处理过的SiO2纳米粒子直接分散至PMMA乳液中制得的复合材料、未添加任何增强物质的空白组进行比较，探索一种能够提高SiO2在基体中的分散性，为义齿复合材料的研究和开发提供理论依据和参考。

The Pomacea canaliculata, an invasive freshwater gastropod, causes a series of problems of the production of rice, ecological environment and parasitic diseases dispersion.

福寿螺作为入侵生物，已经在农业生产、生态环境和寄生虫病传播等方面产生了一系列的影响。

The thermosensitive drug-loading to PNIP/AAm nanogel and drug release profile of in situ gelable PNIP/AAm nanogel dispersion were studied.

3研究了PNIP/AAm纳米凝胶粒对药物的温敏性负载及可原位凝胶化的纳米凝胶分散体原位凝胶对药物的释放行为。

PAAS was selected as dispersant to evaluate the dispersion stabilization of SiO2 nanoparticles by a diffraction-based laser granulometric analyzer and identify the state of adsorption of the dispersant on the surface of nanoparticles by an IR spectrometer.

选择了聚丙烯酸钠作为分散剂，并通过激光粒度分析仪对纳米颗粒的分散稳定性进行评价，通过红外光谱仪对分散剂在颗粒表面的吸附状态进行识别。

Gu Zhuo and pleasant, that one note of the plainest clumsy will fall on your heart, splash the noise of huge rock having a handleless cup, the dispersion in the heart in you go.

古拙而动听，最朴拙的那一个音符将落在你的心上，溅起钟磐的声响，在你的心里弥散了去。

At the premise of modernization of Chinese traditional medicine formulation, we applied the technique of solid dispersion and prepared heterotype drop pellets using the self-made drop pellet machine and the mould.

在中药制剂现代化的发展前提下，本方的剂型设计将采用现代固体分散体技术，与滴丸一样都是将原料、辅料按不同比例制成固体分散物的药料后，制备而得，暂定名为异型滴丸。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷