经纬度

Often people are referring to data that is in longitude/latitude and displayed on a map without having specified any projection.

这种说法通常是说他们的数据以经纬度的形式存储，显示时也没有指定特定的投影。

In a Mercator projection, the north and south poles are spread out, resulting in a map with equally spaced longitudes and latitudes, and a constant compass bearing.

在麦卡托投影（一种制作地图中所采用的投影方式）中，南北两极会被拉伸，使得地图具有相等的经纬度间隔，和固定的罗盘方位。

Besides, the holocellulose and pentosan content were also great positively correlated each other in the wood.

这表明，选择较高经纬度地区的白桦，可以降低灰分、抽出物、木素含量，提高综纤维素和聚戊糖含量。

Set kalman that this text set up strain wave assimilate system one horizontal plane net, at the vertical direction the analyticl system P for longitude and latitude, Arakawa A of lattice point, the dimension in the horizontal and vertical direction is adjustable.

本文建立的集合卡尔曼滤波同化系统是一个水平面上为Arakawa A格点的经纬度网格、垂直方向上为P面的分析系统，且水平和垂直方向上的维数均可调。。

To get the observer's Lat.and Long.just by pressing a button without the sea horizon to turn to,we should know clearly the relationship between the accuracy of zenith distance observed and the accuracy of a position fixed,the causes of the errors of zenith distance observed,what accuracy of zenith distance observed could be obtained and what accuracy standard should be used.

要在无水天线测天时一按按钮就可定出较精确的船位经纬度，必须弄清天体顶距测量精度对定位精度的影响，弄清顶距测量误差产生的原因，可达到的精度及选用适当的精度标准。

Methods Marshland areas near high endemic villages of schistosomiasis in the Poyang Lake region were selected. Corresponding map was digitized and (Landsat 5 TM) the image was corrected according to the digital map. The image where water and land shifted during floody and dry seasons was extracted and classified by unsupervised method. The image in dry seasons was calculated by both Normalized Difference Vegetation Index and Tasseled Cap model. Traditional snail survey was done at the same areas and recorded the geographic position by Geographic Position System. Some cultured lands inside the embankment and water pound in marshland areas were selected as control group. Results The image of pilot areas was classified into 10 classes.

方法选择鄱阳湖区内3个洲岛型血吸病重度流行村周围的洲滩地图进行数字化，在数字化地图的基础上分别对两张Landsat 5TM卫星遥感片进行校正，并提取出冬陆夏水洲滩部分，运用ERDAS IMAGINE软件对此洲滩进行计算机非监督分类、校正植被指数(Normalized Difference Vegetation Index， NDVI)和穗帽湿度变换指数(Tasseled Cap， TC)模型计算；用传统方法进行螺情调查，卫星定位仪记录有钉螺点的经纬度，同时选择部分堤内的农田和水溏作为对照点。

Methods Marshland areas near high endemic villages of schistosomiasis in the Poyang Lake region were selected. Corresponding map was digitized and (Landsat 5 TM) the image was corrected according to the digital map. The image where water and land shifted during floody and dry seasons was extracted and classified by unsupervised method. The image in dry seasons was calculated by both Normalized Difference Vegetation Index and Tasseled Cap model. Traditional snail survey was done at the same areas and recorded the geographic position by Geographic Position System.

选择鄱阳湖区内 3个洲岛型血吸病重度流行村周围的洲滩地图进行数字化，在数字化地图的基础上分别对两张 L andsat5 TM卫星遥感片进行校正，并提取出冬陆夏水洲滩部分，运用 ERDAS IMAGINE软件对此洲滩进行计算机非监督分类(U nsu-pervised Classification)、校正植被指数(Normalized Difference Vegetation Index，NDVI)和穗帽湿度变换指数(Tasseled Cap，TC)模型计算；用传统方法进行螺情调查，卫星定位仪记录有钉螺点的经纬度，同时选择部分堤内的农田和水溏作为对照点。

A weak correlation existed between wood basic density and latitude/longitude, while a strong negative correlation existed between wood basic density and annual mean temperature, temperature in January, frostless season and accumulated temperature over 10℃ of the seed source.

种源木材基本密度虽与产地经纬度相关性较小，但却与产地年均温、1月均温、无霜期和≥10℃积温呈显著的负相关。

This paper presents research on the intersystem prediction and analysis of electromagnetic compatibility to the radio systems positioned by the geographical longitude and latitude coordinate system and the elevation system.

本文对处于陆上局部区域内的、以经纬度地理坐标系和高程系进行定位的无线电系统间的电磁兼容性预测进行了研究，以对系统间的相互干扰情况作出预测，给解决局部区域中无线电系统间相互干扰问题的方案提供支持，以避免在系统布置、安装完成之后出现相互干扰情况而使系统性能下降，甚至失效，造成资金和时间的浪费。

Great Rivers Network User lasa: change the location, change the lines on the map, which outlines the signs of urban change; not changed is latitude and longitude, changing the size area on the map, it has shown a rapid urban blocks expansion and iconic urban development, key projects has increased.

大河网网友lasa：不变的是地理位置，变化的是地图上的线条，它勾勒出城市变迁的痕迹；不变的是经纬度，变化的是地图上的区域大小，它呈现出城区板块的迅速扩大和标志性城建、重点工程的增多。

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。