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中文摘要：
棱柱的重力的潜力的决心在物理测地学和地球物理起一个重要作用。然而，有很少文学，为决定棱柱的重力的潜力提供精确途径。分离元素方法能被用来决定棱柱的重力的潜力，并且能接近有足够的精确性的真重力的潜在的价值(每个元素越小，结果越精确) 。尽管 Nagys 途径提供了关上的表情，一个人不知道它是否是有效的，由于这条途径没在文学被证实的事实。在这份报纸，有分离元素方法的 Nagys 途径的比较上的研究被介绍。结果证明为决定棱柱的重力的潜力的 Nagys 公式在内并且在棱柱外面在领域是有效的。
英文摘要：
The determination of the gravitational potential of a prism plays an important role in physical geodesy and geophysics. However, there are few literatures that provide accurate approaches for determining the gravitational potential of a prism. Discrete element method can be used to determine the gravitational potential of a prism, and can approximate the true gravitational potential values with sufficient accuracy （the smaller each element is, the more accurate the result is）. Although Nagy＇s approach provided a closed expression, one does not know whether it is valid, due to the fact that this approach has not been confirmed in literatures. In this paper, a study on the comparison of Nagy＇s approach with discrete element method is presented. The results show that Nagy＇s formulas for determining the gravitational potential of a prism are valid in the domain both inside and outside the prism.
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