地理和投影坐标系都包含对地球形状的假设(一个略扁的球体)；这称为大地基准点。
Both geographic and projected coordinate systems include a definition of the assumed shape of the earth (a flattened sphere); this is called the geodetic datum.
本文给出接近临界角吋，地球形状的全部一阶摄动和二阶长期摄动的计算方法。
This article gives the computing methods of all first order pertubations and second order secular pertubations about the oblate earth in the vicinity of critical inclination.
动态改变大地水准面差距与地球半径的比值，改善了地球形状的三维表达效果；
Dynamic changing the scale of geoid undulations and the radius of the earth, the video mode of the earth figure is improved.
此外，他还制造了一个地球形状的汽车房屋，大小正好占地球体积的百万分之一。
Hamad constructed a motor home in the shape of a giant globe which is exactly 1 millionth the size of the actual earth.
“尽管平坦地球论还没有公认的模型，”珊顿说，”但为多数人接受的观点认为，地球形状是个圆盘，并且在水中托着一圈某种东西。
"There is no unified flat Earth model, " Shenton suggests, "but the most commonly accepted one is that it's more or less a disc, with a ring of something to hold in the water.
美国得克萨斯大学的科学家经研究发现，在过去28年中，地球形状发生明显的变化似乎都与气象事件(如厄尔尼诺现象等)有关系。
Researchers at the University of Texas at Austin have found that significant changes in the shape of the Earth in the past 28 years may be linked to climate events such as the El Nino weather pattern.
美国得克萨斯大学的科学家经研究发现，在过去28年中，地球形状发生明显的变化似乎都与气象事件(如厄尔尼诺现象等)有关系。
Researchers at the University of Texas at Austin have found that significant changes in the shape of the Earth in the past 28 years may be linked to climate events such as the El Nino weather pattern.
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