地理

The geographical field exercitation is an important part of the geographical teaching process in universities.

地理野外实习是高校地理教学过程中的重要教学环节。

The thesis expatiate on the thought base,principle,design process and calculate technique that used in the foundation of the service pipe network geography information manage system,and set up each module's math model.It handles the network's graphics and words in a whole using the geography information system technique.That will make the water pipe network management easy, facilely and exactly.

本文详细阐述了建立城市给水管网地理信息管理系统的思想基础、遵循原则、设计过程以及采用的计算技术，对管网各功能模块建立了数学模型，运用地理信息技术对城市给水管网进行了图形和属性数据一体化的操作，从而使给水管网的管理更加直观、便利和准确。

This amazing collection features 110 years of foldout maps included with issues of National Geographic magazine.

中文名称：国家地理图片集英文名称：National Geographic Maps 版本：发行时间：2002年地区：美国语言：英语简介：这本精选合集囊括了110年来所有国家地理杂志的插页地图。

Genetic variation in intraspecies of green foxtail from different region of North china is more than that of interspecies Sitlica and S. virids. Cluster show that genetic variation of green foxtail in different region is related to its ecology region.

不同地理来源的青狗尾草之间的遗传差异大于青狗尾草和谷子种间的遗传差异，聚类分析结果显示青狗尾草间的遗传差异同地理区域相关。

At present, the angular difference between geographic and geo- magnetic north poles is about 11 degrees.

目前，地理和地理磁北极之间的角度差值大约是 11 度。

From the point of view of geobotany, with the method of correlative factors of growth of plants, a countrywide theoretic ecological division was done for the introduction of Camptotheca acuminata and three kinds of areas of ecological preferent zone, ecological adaptive zone and ecological unadaptable zone were divided. With the theory of synecology, the characteristic on environment, constitution, life form spectrum, diversity, similarity of plots of communities were researched. Applying the method of species association, discrete distribution, indensity index, fractal geometry, etc. to research relations between the species of the communities, space distribution of Camptotheca acuminata, structure of age of Camptotheca acuminata, in different communities. Using the theories of autoecology, distibutons of seeds on land and growth of seedlings in vertical and horizontal directions, biomass of organ of Camptotheca acuminata were analyzed. On the opinions of conservation biology, the external and internal factors impressing Camptotheca acuminata were analyzed to research the mechanism of the endangered species, and with using of CTM Model, the future development direction of Camptotheca acuminata in different communities were forecasted, and. Standing on the position of resources ecology, discussing the regularity of camptothein in Camptotheca acuminata of different sites and seeding of different resources, also the the derive technics of camptothecin.

本文从地植物学的角度，运用植物生长相关因子法，对我国喜树资源的生态适宜区进行了划分，理论上确定了我国的喜树的引种栽培的最适生活区域、生态适宜区域和不适宜生活区域；从群落生态学的角度，对野生喜树所在的典型群落的群落环境、群落组成、群落生活型谱、群落的物种多样性特点、群落样地间相似性进行了研究；从种群生态学的角度，运用种间联结性、离散分布模型、聚集强度指数、分析几何等分析手段，对野生喜树所在典型群落间的种间关系、喜树的空间分布格局、年龄结构等进行了分析；从个体生态学的角度，对不同年龄组的喜树的种子的散落的垂直分布、水平分布、时间分布及种子发芽率和千里重等特点、不同种源的人工喜树苗期特点、喜树的高生长和茎生长特点、喜树的器官生物量特点进行了研究；从保护生物学的角度，对野生喜树的濒危的内部因素和外部因素进行了探讨，并运用CTM模型对不同群落中野生喜树的种群趋势进行了预测；从资源生态学的角度，对我国地理环境下喜树中喜树碱含量的地理分布规律、不同种源的喜树幼苗中喜树碱含量变化规律进行了研究，并对喜树碱的提取工艺进行了探讨。

The research and application of GIS have permeated into many fields such as geography, geognosy, environmental inspection, land use,traffic security and so on.

摘要自从1963年地理信息系统这一概念诞生以来，地理信息系统的理论和技术方法已得到了飞速的发展，其研究和应用己渗透到自然科学及应用技术的很多领域，如地理学，地质学，环境监测，土地利用，城市规划，交通安全等等，并日益受到各国政府和产业部门的重视。

The Earth is also a big magnet, and its two very near the geographic South Pole, respectively, and the geographical North Pole areas.

地球也是一个大磁体，它的两个极分别在接近地理南极和地理北极的地方。

Firstly, combine the feature of geographical network topology model and rail traffic, the advantage and disadvantage of two geographical network topology are analyzed, the whole process of Digital Track Map modeling is studied according to the above modeling method.

首先，论文结合地理网络拓扑模型和轨道交通的特点，分析了两种地理网络拓扑数据模型的优缺点，并将两者结合起来研究了数字轨道地图建模的全过程。

This paper,by making an investigation on Suzhou folkiore from the regional geography point of view,probes into the content ■ method of regional folklore geography so that we can know better the haman geographical feature of each region.

本文通过对苏州民俗的考察，从区域地理的角度探讨了区域民俗地理应研究的内容及其方法，以更好地认识各地区人文地理特征。

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。