光导

Methods Enamel surface specimens were randomly allocated into 3 groups: 1 450 mg/L sodium fluoride dentifrice group, 1 450 mg/L sodium monofluorophosphate dentifrice group and non-fluoride dentifrice control group. Sound enamel surfaces were dematerialized in bacteria model in vitro. QLF was used to analyze the area of lesions, the loss of fluorescence and ΔQ on enamel surfaces after demineralization.

将30个牙釉质块开窗后分为3组，分别使用氟含量1 450 mg/L的氟化钠牙膏、单氟磷酸钠牙膏和无氟牙膏的处理液处理，并在体外恒化器龋病模型中进行脱矿循环，定量光导荧光技术分析病损脱矿后的面积、荧光损失和总荧光损失量，激光扫描共聚焦显微镜分析脱矿后矿物质含量变化。

Enamel surface ecime were randomly allocated into 3 grou : 1 450 mg/L sodium fluoride dentifrice group, 1 450 mg/L sodium monofluoropho hate dentifrice group and non-fluoride dentifrice control group. Sound enamel surfaces were dematerialized in bacteria model in vitro. QLF was used to analyze the area of lesio, the lo of fluorescence and ΔQ on enamel surfaces after demineralization.

将30个牙釉质块开窗后分为3组，分别使用氟含量1 450 mg/L的氟化钠牙膏、单氟磷酸钠牙膏和无氟牙膏的处理液处理，并在体外恒化器龋病模型中进行脱矿循环，定量光导荧光技术分析病损脱矿后的面积、荧光损失和总荧光损失量，激光扫描共聚焦显微镜分析脱矿后矿物质含量变化。

To develop an automatic laser beam for high power laser system was the main purpose of this project.

本计画之主要研究目的在於研制一高功率雷射束自动化光导系统。

The limitations of this scheme became quite apparent with the introduction of detectors such as the plumbicon, image orthicon and vidicon

这个方法的局限性在引进诸如氧化铅光导管摄像管，超正析象和光导摄像管之类的探测器之后变得很明显。

The synthesis, structure and photoconductive properties of azo pigments are studied in this thesis.

本文着重研究偶氮类光导染料的合成和构效关系。

We have studied the characteristics of photoconductive antenna array.

本论文主要在探讨光导天线阵列元件的特性。

Theoretical basis is provided for applications of nonlinear photoconductive switches in the transmission of electromagnetic energy.

该结论为非线性光导开关在传输领域内的广泛应用提供了理论依据。

In chapter 1,after introducing the background of the dissertation,the development of UWB photoconductive pulse source is briefly reviewed.

在第一章中，介绍了本论文的研究背景，简要回顾了超宽带光导脉冲源的发展历史，同时概括了本论文的主要工作。

The applications of photoconductive switches in the fields of UWB and THz are presented,and the main existing problems at present are pointed out in this paper.

本文重点阐述了光导开关在超宽带技术和太赫兹技术中的应用，并指出目前应用研究中存在的主要问题

Developments and applications of photoconductive semiconductor switches in pulsed power technology.

光导开关研究进展及其在脉冲功率技术中的应用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。