Regional gravity survey, is a basic work in geophysical survey.
区域重力调查是一项基础地球物理调查工作。
This paper presents the high precise gravity survey and primary results before and after the impoundment in the Three Gorges reservoir.
介绍了三峡工程蓄水前后的精密重力测量和取得的初步研究成果。
The total mean square error for gravity survey in mountainous region estimated by the present methods are usually too small to be convincing.
山区重力测量工作中，用现有方法计算总均方误差，往往使均方误差偏小，异常的可信程度降低。
An example is taken to show the shape characteristic of terrain corrections for near, mid and far areas in high accuracy gravity survey in hilly area.
本文以一个具体实例来说明山区高精度重力测量中近、中、远区地改值的形态特征。
In a certain given gravity survey area, it is unreasonable to use the united density value to calculate the Bouguercorrection values of the whole area.
特定的重力勘探区，用统一的密度作布格外部改正有一定的不合理性。
How to improve the accuracy of terrain correction in mountainous-district gravity survey is an important subject which people have paid close attention to.
在山区重力勘探中，如何提高地形改正的精度，一直是一个引人关注的重要课题。
Based on data of gravity survey, seismic exploration, aerial magnetical survey and surface geology, the central fault belt was identified in the Qaidam Basin.
重力、航磁、地震、遥感、地表地质等资料的研究结果表明，柴达木盆地基底存在着中央断裂带。
In mountainous area, gravity survey external corrections, including terrain and Bouguer corrections, are the prerequisites for gravity data processing and interpretation.
山区重力勘探中，重力外部校正是重力勘探料处理和解释的前提，其内容包括地形校正、中间校正等。
With reference to the gravity survey, this paper describes the schemes of control network layout used with global positioning system (GPS) technique for Donghai Bridge project over sea.
结合重力测量，介绍利用GPS技术进行东海大桥跨海工程控制网的布设技术方案。
Based on the information of practical survey upon gravity change before and after Haicheng Earthquake, the paper presents a reduced representation for change of acceleration of gravity with time.
本文根据海城地震前后重力变化的实测资料提出重力加速度随时间变化的一种简化表示。
Data and drawings of astronomical survey, geodetic survey, geodetic survey by satellite, and gravity measurement;
天文测量、大地测量、卫星大地测量、重力测量的数据和图件；
The establishment of Taian gravity baseline field, the geologic structure around baseline field and the survey of baseline are introduced in this paper.
本文介绍了泰安重力基线场的选建，基线场周围的地质构造以及重力基线的测定工作。
Based on analysing theoretical formula of normal gravity field of the earth, the author holds that the geodetic elevation of GPS survey might ha adopted for cavity altitude correction.
本文通过对地球正常重力场理论公式的分析，认为可以采用GPS测量的大地高进行重力高度改正。
So far as 3D gravity and magnetic survey is concerned, the data acquisition, topographic correction and 3D forward and inversion methods are gradually practical;
对于重磁力三维勘探而言，数据采集、地形改正和三维正反演法已逐步走向实用；
So far as 3D gravity and magnetic survey is concerned, the data acquisition, topographic correction and 3D forward and inversion methods are gradually practical;
对于重磁力三维勘探而言，数据采集、地形改正和三维正反演法已逐步走向实用；
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