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   重力测量 在 自然地理学和测绘学 分类中 的翻译结果: 查询用时:0.049秒
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重力测量     
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  gravity survey
In mountainous area, gravity survey external corrections, including terrain and Bouguer corrections, are the prerequisites for gravity data processing and interpretation.
      
We carried out a high precision gravity survey in the SHJZ structural zone.
      
In this paper we have analyzed precise gravity survey and gravity effects resulted from water loading, crustal deformation, ground water level change and precipitation before and after the water impoundment in the Three Gorges Reservoir.
      
It appears that a combination of both systems would provide an ideal airborne gravity survey system, combining the excellent bias stability of the LCR gravimeter with the higher dynamic range and increased spatial resolution of the strapdown INS.
      
As an example, we estimate the gravity values along the flight-lines from an airborne gravity survey over the Alps and introduce an a priori covariance matrix of the gravity disturbances from a global geopotential model.
      
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  gravimetry
The performance characteristics of the proposed crystallization method are comparable to those of conventional gravimetry.
      
The proposed method outperforms gravimetry in its simplicity, versatility, possibility of automation, rapidity, and small volumes of test water portions.
      
The macrotexture and mechanical properties of porous Al2O3/Al metal ceramics prepared by the hydrothermal treatment of aluminum powder in a closed space are studied using gravimetry, pycnometry, mercury porosimetry, and scanning electron microscopy.
      
Kinetics of the contact deposition of nickel on aluminum from alkaline ammonia solutions of different composition is studied by methods of voltammetry, gravimetry, and x-ray fluorescent analysis.
      
The effect of thiocyanate on the corrosion dissolution rate of silver in thiosemicarbazide (TSC) ammonium-chloride-bromide solutions was studied by using gravimetry and rotating disc electrode technique.
      
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  gravity measurement
Because the leveling route reaches over 120km in length and must go over two mountains in 2 800m height, the first-order precise leveling and precise gravity measurement should be carried out in the construction stage.
      
A gravity network was established by a crew of gravity measurement in July, 1981, with three LCR gravimeters.
      
The high accurate gravity measurement have been carried out many years in the capital region.
      
According to the characteristics of marine gravity measurement, this paper presents a new method of combined adjustment which takes into account both direct and indirect influence of position errors.
      
Development of an atom-interferometer gravity gradiometer for gravity measurement from space
      
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  gravimetric survey
The gravimetric survey was the most successful for the direct detection of the cavern, but the other methods could be useful in detecting geological features which could be associated with the presence of these features.
      
Gravimetric survey of airborne fungal spores in Milan
      
Gravimetric survey of airborne fungal spores in Milan
      
We used the results of a static high precision gravimetric survey to detect subsurface cavities in Ghor Al Haditha.
      
  其他


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本文介绍了一元离差分析和二元离差分析在测量上的应用。第一部分阐述了一元离差分析的基本理论,以及应用这种理论来研究多组观测的结果其差异是否显著的问题。若存在显著性差异时,则进一步用区间估计来讨论它们的取值范围,并以一等水准测量中的“直立”与“平放”两种方法,检验水准标尺的长度为例作了说明。根据一元离差分析推导了精度估算公式,并附带介绍了苏联学者Н.И.聂伯金斯基所提出的不等精度观测的精度估算中离差分析问题。第二部分是本文的重点,着重讨论了重力测量上应用二元离差分析检验第一类半系统误差和第二类半系统误差的问题,作者把两地重力差Δgij分解成四个量加以讨论。这四个量是:常数——Δg_c,仪器影响——Δg_(ξi).,测线影响——Δg_(ξ.j),余差——ε_(ij)。从而导出了两地重力差Δg的精度估算公式,并与习用的Ю.Д.布朗热公式相比较,指出了布朗热公式中的不妥之处。

:

如所周知,从重力测量确定大地水准面,是物理大地测量学的一个基本问题,在解决这一问题中,司托克斯公式有着明显作用,因此,对该公式进行全面地分析和论证显得十分必要。本文的主要目的是,在p~2T→0的前提下,严格处理在推证过程中遇到的一个广义积分〔见(8)式〕,特别是,着重指出了扰动位T在什么条件下才是调和的,而由得出的函数T,却往往并非调和的〔见公式(30)〕。应用本文的方法,也容易给出边值问题(Ⅱ)、(Ⅲ)的解。从(10)中的两个等式看出,下面所得的结果(11)和司托克斯公式(18)没有本质上的差别。本文的论证和分析,也将有助于Baranov在〔3〕中所提问题的解决。

This report explains the theory of precision estimation for Seismogravity Survey and emphasizes the precision estimation of three connective in the line to be observed with two gravimeters. In this paper, three principles for estimation of irregular standard errors is proposed. On those principles, present formula is reviewed, and a suggestion on improvement of the estimating formula given in the refrence[2], [3]is held out. Finally, the discriminant determining the changed values of repeat observed data in...

This report explains the theory of precision estimation for Seismogravity Survey and emphasizes the precision estimation of three connective in the line to be observed with two gravimeters. In this paper, three principles for estimation of irregular standard errors is proposed. On those principles, present formula is reviewed, and a suggestion on improvement of the estimating formula given in the refrence[2], [3]is held out. Finally, the discriminant determining the changed values of repeat observed data in two periods is also proposed. A problem that the imaginary numbers is taken place in estimation of regular errors is theoretically discussed in passing.

为了研究局部重力场的变化,仅对重力测量结果作精度估计有时是不够的,应同时考虑估计的准确度。 本文阐述了估计重力测量精确度的理论,着重对两台仪器三程测量的精确度估计作了讨论。文中对偶然中误差的估计提出了三个原则,依此原则评述了现有公式,并对文献[2]、[3]中给出的估计公式提出了改进建议,最后还提出了确定两期复测成果变化量的判别式。顺便也从理论上讨论了估计系偶差出现虚数的问题。

 
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