地理专业英语文章翻译

大陆和大洋地壳的一个有趣的特性是，这些构造板块的上升，sink.This现象，称为isostacy的能力，是因为锈浮在上面的地幔，像冰块water.When地球是地壳体重增加山建设glaclation，变形和下沉深入的重量被删除的mantle.If的，地壳变得更加蓬勃，漂浮在地幔高。 不是sostacy是isostasy 意思是地壳均衡

geography

此外，它夸大了南北距离，因为各纬线到南极点和到北极点间的距离不是完全相等的．这是由于地球是一个球面，随着距赤道的距离越来越远，误差也越来越大．在Mercator制定的地图上，每个地点的数字位置（即经纬度）是精确的．然而在近两极地区地方在地图上被拉伸变形，尺寸也完全变了．因为这个原因，使得格林兰岛的看起来比北美洲要大，而实际上它只是北美洲面积的八分之一．

地理

geography

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The earth revolves around the sun in the speed of 30 kilometers per second, around the sun takes 365 days to five forty-eight 46 seconds, there is just one year, called the tropical year on astronomy. The earth revolves around the sun's orbit is an ellipse, the long diameter and short diameter difference, can be approximated as a perfect circle. The sun was a focus of the ellipse, and the focus is not on the ellipse center, so the distance between earth and the sun is sometimes a bit closer, sometimes a little farther. At the beginning of the January, the nearest to the earth, 147100000 kilometers, it is called perihelion. Seven early Earth farthest from the sun, is 152100000 kilometers, it is called aphelion. In fact, when the earth is at perihelion, the northern hemisphere winter, the southern hemisphere summer at aphelion; when, the northern hemisphere summer, the southern hemisphere winter. This shows, the changes of the seasons and the perihelion and aphelion independent