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   weak anomalies 的翻译结果: 查询用时:0.008秒
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weak anomalies
相关语句
  弱异常
     : Up till now, exploration geochemistry has been mainly devoted to the appraisal of low and gentle anomalies or indistinct weak anomalies.
     勘查地球化学发展至今,其主要任务是评价低缓异常或不明显的弱异常
短句来源
     In this paper, a method for extracting weak anomalies based on crosscorrelation principle is introduced. The authors applied this method to the extraction of weak anomalies from complicated ones and a practical example is given.
     本文提出一种基于互相关原理的提取弱异常的方法,用于从复杂异常形态中提取出有用的弱异常,给出了应用实例.
短句来源
     Secondary gentle anomalies,i. e. higher in ηs、R_2、Js and lower in ρs are more clear than the weak anomalies of IP indicated with secondary parameters, which are effective for increasing ore reserves and ore prospecting.
     在管地贫硫银金矿床进行了近场源二极激电法的应用研究,获得了三高一低的次级低缓激电异常,即高ηs、R_2、Js,低ρs,表明用次级参数表示的激电弱异常要明显,为增加矿量,提高地质找矿效果起了积极作用。
短句来源
     The effective method combinations for different geological tasks which are suitable to geologicalmapping and can enhance local weak anomalies and those weak information associated withmineralization have been summarized.
     总结出适用于地质填图、突出局部弱异常及与矿化有关的弱信息等不同地质任务的有效方法组合。
短句来源
  弱异常的
     A METHOD FOR EXTRACTING WEAK ANOMALIES
     一种提取弱异常的方法
短句来源
     In this paper, a method for extracting weak anomalies based on crosscorrelation principle is introduced. The authors applied this method to the extraction of weak anomalies from complicated ones and a practical example is given.
     本文提出一种基于互相关原理的提取弱异常的方法,用于从复杂异常形态中提取出有用的弱异常,给出了应用实例.
短句来源
  微弱异常的
     As a result, the application of the method in recognizing weak anomalies of high accuracy gravity survey and determining the accurate position of buried hill in oil-bearing sedimcntary basin has brought forth sat isfactory results.
     将该方法应用于某含油气沉积盆地上高精度重力细测微弱异常的识别及古塔山精确位置的求取,取得了满意的效果。
短句来源
  “weak anomalies”译为未确定词的双语例句
     SUBREGION MEDIAN CONTRAST FILTERING METHOD AND RECOGNITION OF WEAK ANOMALIES
     子区中位数衬值滤波法及弱小异常识别
短句来源
     influence on the scientific theoretical development, they are divided into the weak anomalies and the strong anomalies.
     根据反常在科学理论发展中的影响力的大小,可以将反常分为弱反常和强反常两类。
短句来源
     The influence of the heat source weak anomalies over Philippines on the east Asian tropical summer monsoon and the Indian summer monsoon and the Western Pacific Subtropical High and the Southern Asian High is significant.
     而热源异常减弱时,东亚热带季风的减弱、南亚季风的加强都达到显著水平,副热带高压、南亚高压的位置异常偏南也是显著的。
短句来源
     In the process of recognizing weak anomalies in the area, a new anomaly is recognized by using this CAV method.
     最后,引入用于识别弱小异常的衬值异常法,对研究区内的弱小异常进行了识别,发现了一个新的异常。
短句来源
     In plateau shallow hill area of northern Sichuan,stream sediments are characterized by low geochemical background,weak anomalies with insignificant gradient,and indistinct ore prospecting indicators,and hence it is quite difficult to carry out ore prospecting work in this area.
     川北高原浅丘地区 ,水系沉积物的地球化学背景低、异常微弱、锑度变化小 ,找矿标志不明显 ,找矿难度大。
短句来源
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  weak anomalies
Although some weak "anomalies" appear in the current data, the statistical case is not there.
      
Some weak anomalies are discovered in the velocity of the longitudinal sound in the vicinity of the superconducting phase transition.
      
The transition at 129 K shows only very weak anomalies like those found in the α-β transition of Te(OH)6·2NH4H2PO4·(NH4)2HPO4.
      
This effect may be due to selection whereby only objects with strong chemical anomalies are classified as CP stars, thereby producing a deficit of stars with relatively weak anomalies.
      
The weak anomalies over the region are consistent with the near-neutral ENSO conditions during the season.
      
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In order to discern slowly varrying weak anomalies on a background of noise field and to deal with problem like limiting the instability of the solution due to high-frequency magnification of errors in the series of calculations such as the downward-continuation of potential field, this paper discusses the designing principles of an optimum linear digital filter in the least square sense. This may be transformed into the mathematical problem, namely how to select the optimum filtering function in the space...

In order to discern slowly varrying weak anomalies on a background of noise field and to deal with problem like limiting the instability of the solution due to high-frequency magnification of errors in the series of calculations such as the downward-continuation of potential field, this paper discusses the designing principles of an optimum linear digital filter in the least square sense. This may be transformed into the mathematical problem, namely how to select the optimum filtering function in the space of the L2 linear normed function. It would be very complicated and difficult, if the problem is to be solved directly in the space domain. We found that it may be mathematically much simplier and more rigorous, if we should directly select the trnasfer function or the wave-number response of the optimum linear filter in the wave-number domain by using the method of isoperimetric problem in calculus of variations. In this way, the expression of the transfer function of the selected optimum linear filter is quite simple, namely,L(f,k)=|Si(f, k)|2/{|Si(f,k)|2+λ|Ni(f,k)|2}where|Si(f,k)|2 and |Ni(f,k)|2 express the energy spectra (or the power spectra) of the filter input signal and noise respectively; f, k are wave numbers on the x and y directions.In regard to the above-mentioned two types of the problem and the two related optimum linear filters, the expressions of L(f,k) are the same. They differ only in the conditions of selecting the parameter (λ).After setting up the theoretical expression of the transfer function L(f,k) of the optimum linear filter, we should be able in the least square sense to examine various linear filtering methods, so far published in foreign and domestic literatures in solving the above-mentioned two types of the problems and to show that the optimum results of the linear filtering can be achieved theoretically for different signal and noise conditions. Thus, it provides theorectical criterion for designing two-dimensional linear digital filters.For the observed results of the harmonic functions of potential fields, the above theory can be applied easily to the designing of optimum linear digital filters, but only in the approximate manner.

针对如何在干扰场的背景上区分出低缓异常,以及在位场的向下延拓一类计算中如何限制因误差的高频放大所导至的解的不稳定性等问题,本文探讨了在“最小二乘”意义下的最佳线性数字滤波器的设计原理,并将它转化为下述数学问题,即在L_2线性赋范函数空间中如何选取最佳滤波函数的问题。在空间域中直接解这个问题是十分复杂和困难的,我们发现在波数域中用变分法中的等周问题的解法直接选取最佳线性滤波器的传输函数(或波数响应),则在数学方法上既简单又严格。这样选取的最佳线性滤波器的传输函数L(f,k)其表达式也很简单,即L(f,k)=|S_i(f,k)|~2/{|S_i(f,k)|~2+λ|N_i(f,k)|~2}。式中,|S_i(f,k)|~2及|N_i(f,k)|~2分别代表滤波器输入端讯号和干扰的能谱(或功率谱),f、k分别代表x、y方向上的波数,λ为大于零的常数。 对上述两类问题以及相关的两种最佳线性滤波器而言,L(f,k)的表达式是相同的,而区别仅在于其参变量λ的选取条件不同而已。 有了最佳线性滤波器的传输函数L(f,k)的理论公式,就可以在最小二乘的意义下分析和评价国内外所发表的解决上述两类问题的各种线性滤波方法,并能指出在不...

针对如何在干扰场的背景上区分出低缓异常,以及在位场的向下延拓一类计算中如何限制因误差的高频放大所导至的解的不稳定性等问题,本文探讨了在“最小二乘”意义下的最佳线性数字滤波器的设计原理,并将它转化为下述数学问题,即在L_2线性赋范函数空间中如何选取最佳滤波函数的问题。在空间域中直接解这个问题是十分复杂和困难的,我们发现在波数域中用变分法中的等周问题的解法直接选取最佳线性滤波器的传输函数(或波数响应),则在数学方法上既简单又严格。这样选取的最佳线性滤波器的传输函数L(f,k)其表达式也很简单,即L(f,k)=|S_i(f,k)|~2/{|S_i(f,k)|~2+λ|N_i(f,k)|~2}。式中,|S_i(f,k)|~2及|N_i(f,k)|~2分别代表滤波器输入端讯号和干扰的能谱(或功率谱),f、k分别代表x、y方向上的波数,λ为大于零的常数。 对上述两类问题以及相关的两种最佳线性滤波器而言,L(f,k)的表达式是相同的,而区别仅在于其参变量λ的选取条件不同而已。 有了最佳线性滤波器的传输函数L(f,k)的理论公式,就可以在最小二乘的意义下分析和评价国内外所发表的解决上述两类问题的各种线性滤波方法,并能指出在不同的讯号与干扰条件下,在理论上线性滤波可能达到的最佳效果,从而为设计二维线性数字滤波器时,提供一个理论上的准则。 对位?

This paper presents the analysing accuracy of uranium content by delayed neutron method is up to 0.2 ppm and the relative error is less than 15%. A case history in regional geochemical exploration for uranium deposits arc also given The weak anomalies measured in the areas slightly greater than uranium background by this method are more obviously than visual colorimetric method.

本文介绍了应用缓发中子法测定样品中铀含量的精密度可达0.2ppm,分析相对误差小于15%。文中还给出了该法在普查铀矿的区域化探中的应用实例,并指出对铀含量微弱增高地段的反映明显优于目视比色法。

By computation of second vertical derivatives of gravity and magnetic data and upward continuation method to resolve a honizontally overlapping anomaly in the Wanghao Iron Mine area in Jiangsu Province, a local weak anomaly due to a blind ore body at depth was extracted and enhanced. After approving by forward solution and test drilling, the iron ore body of considerable thickness has been found at the predicted depth.

利用重磁垂向二次导数和向下延拓等方法,分解江苏省王浩铁矿的一个水平叠加异常,提取深部盲矿体引起的局部弱异常,经正演计算和钻探验证,在预计深度找到一个有一定厚度的铁矿体。

 
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