查询词典 processes

In this study, the CPE processes of four different kinds of polyaromatic hydrocarbons, acenaphthene, anthracene, phenanthrene and pyrene, with two kinds of silicone surfactants, DC-193 and DC-190, were studied separately, and four different assisting methods for the phase separation of the CPE process including heating at a higher temperature, adding salts, centrifugation and stirring were introduced, respectively.

今利用两种聚醚型有机硅表面活性剂DC-193和DC-190，对蒽、菲、芘和苊四种多环芳烃进行浊点萃取研究，分别使用加热、加盐、离心和搅拌等辅助方法改变相分离过程的速度。通过测定表面活性剂富集相的体积百分率Vs/随时间的变化和最终的萃取率，研究上述四种不同辅助方法对相分离行为和萃取性能的影响。

In this study, the CPE processes of four different kinds of polyaromatic hydrocarbons, acenaphthene, anthracene, phenanthrene a...

今利用两种聚醚型有机硅表面活性剂DC-193和DC-190，对蒽、菲、芘和苊四种多环芳烃进行浊点萃取研究，分别使用加热、加盐、离心和搅拌等辅助方法改变相分离过程的速度。

Objective To optimize the extraction processes for ferulic acid from Biyuanshu Nose Drop .

目的优选鼻渊枢滴鼻剂的提取工艺。

Many processes were used to refine benzoic acid. Each process has its advantages and disadvantages and can be used in different production conditions.

苯甲酸精制方法有很多种，每种方法都有各自的优缺点，适用于不同的生产条件。

Oxalic acid and its salt s are used in many chemical processes.

草酸和草酸盐用于许多化学作用。

The processes and the key techniques of the null coupler and acoustic transducers are described and analyzed in detail.

第三部分是光纤声光耦合器和光纤环形器构成的新型OADM 的实验研究。

The optimized structures and energies of the reactants, intermediates, transition states and products of two reaction channels (corresponding to syn-acraldehyde and anti-acraldehyde) in gas or in methanol solvent were obtained. The potential energy profiles reveal the processes of the trimethylamine-catalyzed Baylis-Hillman reaction between acraldehyde and formaldehyde in gas or in methanol solvent at the microscope level.

通过研究，获得了三种情况下两种反应通道(分别对应于顺式-和反式-丙烯醛)中涉及的反应物、产物、中间体、过渡态的优化结构及其能量，并由此得到了反应的势能面图，在电子微观层次上揭示了三甲胺催化的丙烯醛和甲醛的Baylis-Hillman反应的微观过程。

At last,based on the traditional cluster-cluster aggregation model we introduce acritical cluster size and a breakup exponent that depends on the fragment sizes in thereversible and irreversible cluster-cluster aggregation processes.

在第六和第七章中，我们研究了临界集团的大小对可逆和不可逆集团聚集过程标度行为的影响。我们知道，在一般的CCA模型中，只要二个集团通过扩散碰到一起，它们便融合成一个更大的集团。

Selective oxidation of propane to acrolein is one of the most important processes in petrochemical industry.

丙烷作为油田气、天然气及炼厂气的一个主要组分资源丰富，长期以来一直未能得到有效利用。

Actin is the component of the cytoskeletal system that allows movement of cells and cellular processes.

肌动蛋白是细胞骨架的组成部分，让细胞流动和行使各种生理过程。

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