查询词典 secondary education

Before the Second World War, although secondary school education has realized massification and universalization, it has not realized real equal and balanced development.

战前的中等教育虽然在量上实现了大众化，但是并没有实现真正意义上的平等化和均衡化。

Second: Theory research of Enterprise education of the secondary vocational school.

其次是对中等职业学校创业教育的理论研究。

This article mainly concerns the education of primary and secondary schools in England and Wells.

本文主要关注的是英格兰和威尔士的中小学教育。

The project was expected to officially be launched by President Yayi Boni on March 19, 2010 and will seek to "foster the access to secondary and university education among Haitian pupils and students."

这项计画官方发表的时间在2010年3月19日，由该国总统宝尼发起，并寻求「促进海地小学生及国中生进入高中及大学教育的机会」。

To intensify and accelerate the development of secondary vocational education of agriculture is just an extremely fundamental way to improve the quality of agricultural population, and also the most effective way to change the heavy burd...

加强中等农业职业教育，加快它的发展，是提高农业人口素质最根本的途径，是把农村沉重的人口负担转化为巨大的人力资源的最有效形式。

Followingly, I analyse the training of information technology education of the primary and secondary schools teachers of Gansu province, from macro 、micro and middle scales and have found the problems of it respectively.

接着从宏观、中观和微观上对甘肃省中小学教师信息技术培训进行了分析，分别找出其中存在的主要问题。

For example,the increase of weariness,the dislike of school,the inadaptation of learning and so on. children of migrant workers ; primary and secondary schools ; growth education ; survey

调查内容主要涉及武汉市农民工子女的入学情况、家庭情况、适应情况、人际关系、学习动机、学习方式、行为习惯以及自尊、焦

With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.

本论文本着科技创新、服务于生产实践的精神，以设计价格低廉，性能优越、结构合理简单的L-band EDFA为目标，依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目，展开了如下工作：首先，介绍了掺铒光纤放大器的工作原理，归纳总结了基于速率方程基础的EDFA的各种理论模型，分析比较了各个模型的特点和适用场合，最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础；针对实际实验条件提出了修正的EDFA模型的数值计算方法；创新地提出了增益—噪声系数全局分析法，直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系，并对各种EDFA的性能作了全面的比较；第二，介绍了掺铒光纤放大器特性参数的定义与测量方法，重点介绍了噪声系数和增益系数的测量方法及实验装置；介绍了组成掺铒光纤放大器各组件的特性测量方法，重点介绍了测量掺铒光纤参数的方法和实验装置；第三，针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求，我们创新地提出了四种不同的L-band EDFA结构，按设计思路可以分为两大类：一类是基于单抽运二级泵浦法，这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构；基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构；基于单根光纤光栅、泵浦分配、两段级联的EDFA；另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法，如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。

To most of us, the meaning of life as a whole is not of primary importance, and our education emphasizes secondary values, merely making us proficient in some branch of knowledge.

整体的生活意义对我们大部分人来说，并非是最重要的事，而我们的教育所强调的是次要的价值，仅仅使我们熟谙了某个部门的知识而已。

Since its beginning, the law-related education in American elementary and secondary schools aims at the demystifying of law.

从产生伊始，美国中小学法治教育的总目标就是将法律&祛神圣化&。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。