一系列

Objective To explore the simulation technology of tooth movement during the virtual orthodontic treatment and help the doctor rapidly design the shape of invisible tooth aligner.

目的：研究口腔数字化正畸矫治中的牙齿虚拟移动仿真技术，为制作透明隐形矫治器过程中一系列母模的数字化建模设计作准备。

Art has an economic value but the important value is that art is as necessary for human life as is the daily alimentation.

这个展览展示了在人类生活中数世纪以来关于金钱地位的一系列问题上艺术与金钱的关系。

Some one considered, he thickening mechanism of latex systems containing carboxyl groups under alkalescency condition result from a series of factors"from the swell to the solution of the latex particle".

一般认为含羧基乳胶粒子体系的碱增稠机理，是由乳胶粒子的溶胀乃至溶解等一系列变化所致。

We consider that the proper substrate temperature is more important for the catalytic oxidation effects than the alkali metal coverage.

在有无催化剂K以及在室温和500K的温度下得到了一系列的实验结果。

From the point of view of molecular design, Al is a good candidate to introduce to the BO〓 groups to form a series of new alkali metal al...

本论文从分子设计的角度，在BO〓基团中引入Al原子，获得了一系列新的碱金属铝硼酸盐化合物。

The alkene chain and H2Se were detected respectively by a series of experiments to support the new mechanism.

通过一系列实验，我们分别检测了烯烃和硒化氢气体，证实了我们所提出的生成机理。

A modified method of free radical alkylation has been using for synthesizing of quinone derivatives with an alkyl side chain variation.

应用经过改进的自由基烷基化新方法，合成了一系列的具有长侧链结构的苯醌类化合物。

Synthesis of Arylenealkyne Conjugated Macrocycles Containing Long Alkylene Bridge;2. Rigid,planar structures have been modified through incorporation of new additional groups to generate sharp-persistent imine macrocycles in very high yields.

我们设计并合成了一类氢键诱导下构象受限的芳酰胺寡聚体，以此模块作为前体，利用动态共价键的方法，高产率(80%-89%)地合成了一系列新的亚胺大环。

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

The Marketing programme includes an all-important approach to management decision-making as well as a set of business functions.

营销方案包括了所有重要的管理方法，决策以及一系列的商务功能。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。