中学

Secondary amenorrhoea implies a gynaecological disorder or a general cause or disease.

中学闭经意味着妇科失常或一般事业或疾病。

They have had to mark papers in anumber of secondary school students use the teacher absurd,but also that they have amoral obligation concerns the preparation of grammar citizens.

他们中有不得不批改中学学生试卷中一些荒唐用法的老师，也有认为自己有道德义务编写语法书的忧虑的公民。

26 Am Ian studies his transcript and diploma as he departs the Bear Creek High School commencement at Red Rocks Amphitheatre.

上午11时26伊恩研究，他的成绩单和文凭，他离开了熊溪中学的红色岩石露天剧场展开。

This is "driving simulation", an elective course at the High School Affiliated to Renmin University.

这是人民大学附属中学的一门选修课：模拟驾驶。

With the help of the research, the author opened an elective course in Senior I.

以中学化学双语教学的实践为研究平台，在作者所在学校高一年级开设了双语化学的选修课，本选修课的目标分两个阶段：第一阶段的目标是为了让学生在化学专业知识和语言应用水平两方面逐步得到提高。

"This is "driving simulation, an elective course at the High School affiliated to Renmin

这是人民大学附属中学的一门选修课：模拟驾驶。

This article tries to analyse the problems that we should pay attention to in the reform.

文章从理论高度对中学课程改革中应注意的问题进行了分析。

This thesis is based on integrated experiments and research of modern information technology and analytic geometry ,which is the subsidiary task of the provincial 95main task-integration of modern information technology and middle schools courses in our school .

本文是在我校省级95重点课题"现代信息技术与中学课程整合"的子课题"现代信息技术与解析几何的整合实验与研究"的基础上，经过一年多的探索和研究提出并撰写的。

analytical geometry ; the thinking of vector ; vector tool ; the structure of cognize

教材从空间向量与坐标入手，主要以向量为工具，研究空间中的一些几何图形及性质，不论从知识上还是从思维上，都是对中学内容的加深和提高。

On depending on author's perception of teaching 《analytical geometry》,raising a warning about the phenomenon of student's neglect of the use of vector in exercise,this essay elucidate the preponderance of vector in solving problems about space.

在中学，解析几何课程主要研究平面上一些点、线的几何位置和几何性质，所涉及的点、直线、曲线均共面，它们都落在坐标系所在的平面内。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。