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    Sustainable Development and Utilization of Thermal Groundwater Resources in the Geothermal Reservoir of the Wumishan Group in Tianjin
    天津地区雾迷山热储地下热水资源可持续开发利用研究
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    Research on Depositional Systems and Prediction on Favorable Sandstone Body of Lower Member of Lower Ganchaigou Group in Southwestern Area of Qaidam Basin
    柴达木盆地西南区下干柴沟下段沉积体系及有利砂体预测
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    THE NUMERICAL METHOD FOR ANALYSING THE DEFORMATION AND FAILURE OF ROCKS BASED ON THE STRESS-STRAIN CURVE GROUP
    根据岩石应力-应变曲线分析岩石变形破坏的数值方法
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    An Overview of the Visit to China by the Philippine Seismological Investigation Group
    菲律宾地震考察访华概况
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    Multielement Neutron Activation Analysis of Two Ultrabasic Rock Standard Reference Materials by Combining Ge (Li) γ-ray Spectrometry and Group Separation
    用Ge(Li)γ-谱仪和分离相结合的方法对两个岩石标准参考物质DZ∑-1,DZ∑-2的多元素中子活化分析
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  formation
    Reservoir Description and Simulation of Shahejie Formation, Gudong Oilfield
    孤东油田沙河街油藏描述与数值模拟
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    Research for Sediment System, Reservoir Character and Oil-reservoir Formation of Yanchang Formation, Triassic,Ordos Basin
    鄂尔多斯盆地三叠系延长沉积体系、储层特征及油藏成藏条件研究
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    Study on the Structural Characteristics and Reservoir Forming Model of Neogene Guantao Formation in Jiyang Depression
    济阳坳陷馆陶构造特征及成藏模式研究
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    The Comprehensive Study of Reservoir of Feixianguan Formation in Lower Triassic Series, Northeast Sichuan
    川东北地区下三叠统飞仙关储层综合研究
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    Research on High Resolution Sequence Stratigraphy and Sedimentary Models of Shanxi Formation in the Northeastern Part of Ordos Basin
    鄂尔多斯盆地东北部山西高分辨率层序地层与沉积模式研究
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  set
    Measurement and Analysis of Acoustic Emission Signal for a Set of Rock Samples
    一岩样声发射信号的测量及频谱分析
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    Oil and Gas Migration and Pool-forming History in Tazhong Area-Taking CⅢ Oil Set as an Example
    塔中地区CⅢ油油气运移及成藏史初探
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    Four Foraminiferal assemblages were set up : III Geinitzina postcarbonica assemblage, II Multidiscus planispiralis-Glomospira assemblage and I Bradyinar Palaeotextularidae assemblage were belonged to Taiyuan Formation, Bradyina guangxiensis assemblage was beared in Benxi Formation.
    小有孔虫自上而下建立了太原的三个合:Ⅲ Geinitzina postcarbonica合,Ⅱ Multidiscus planispiralis-Glomospira合,Ⅰ Bradyina-Palaeotextularidae合和本溪的Bradyina guangxiensis合;
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    Using B3LYP calculation method and taking 6-311++G (3df,2pd) basis set in our Gaussian calculations, the results show that the calcite cluster structure can absorb environmental infectant. Thus these researches may offer theory basis of study of adsorption mechanism of calcite surface.
    在本次研究中,采用了量子化学计算中的B3LYP方法以及6-311++G(3df,2pd)基进行理论计算,其结果能很好的反映方解石表面分子簇结构吸附环境污染物的情况,为阐明方解石表面分子簇结构吸附环境污染物的机理提供了理论基础。
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    Comparisons between CORA-3, the revised CORA-3, Hamming and the Weighted Hamming methods are conducted to the same data set.
    本文对同一资料用CORA-3方法、CORA-3修改方法、Hamming方法和加权Hamming方法的识别分类结果进行了比较。
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  series
    The Comprehensive Study of Reservoir of Feixianguan Formation in Lower Triassic Series, Northeast Sichuan
    川东北地区下三叠统飞仙关储层综合研究
短句来源
    THE PETROLOGIC STUDY OF OOLITIC LIMESTONE OF ZHANGXIA SERIES OF MIDDLE CAMBRIAN IN TANGSHAN,HEBEI
    河北唐山地区中寒武统张夏鲕粒灰岩的岩石学研究
短句来源
    Development Conditions for Coalseam 13 of Upper Shihezi Formation in Permian of Series Huainan Coalfield
    淮南煤田二叠系上石盒子13号煤层的形成条件
短句来源
    An Analysis of Sedimentary Environment of Jiancaogou Formation of Upper Ordovician Series in Northern Guizhou and Its Adjacent Areas
    黔北及邻区上奥陶统涧草沟沉积环境分析
短句来源
    EXPERIMENTAL STUDY ON A PARAGENIC ASSOCIATION OF ANTIMONY-BISMUTH SULFOSALT MINERALS AND THE SYNTHESIS OF BERTHIERITE-GARAVELLITE SERIES
    一锑-铋硫盐矿物共生合及合成辉铁锑矿-硫锑铋铁矿系列的实验研究
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  group
In all these cases we actually show that Γ=π1(M) has a finite index subgroup which is mapped onto a nonabelian free group.
      
We define a map from an affine Weyl group to the set of conjugacy classes of an ordinary Weyl group.
      
Open subsets of projective spaces with a good quotient by an action of a reductive group
      
The aim of the paper is to describe all open subsets of a projective space with an action of a reductive group which admits a good quotient.
      
Reductive group actions on affine quadrics with 1-dimensional quotient: Linearization when a linear model exists
      
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  formation
In the present study, two of the probable an umor marine compounds, manzamine A and sarcophine, were screened using benzo[a]pyrene (BP)-derived DNA adduct formation in MCF-7 cells as intermediary biomarker.
      
Most of the compounds were found to be very potent inhibitors of malondialdehyde (MDA) formation at 10-3M.
      
However, no significant inhibitory effect was obtained on superoxide anion formation.
      
Results of clone formation and Flow cytometry analysis (FCAS) suggested that prodigiosin has the capability of restraining mitosis by regulating the cell cycle.
      
These corresponding chalcones were reacted with phenyl hydrazide in glacial acetic acid, which led to the formation of novel 4-[5-(substituted phenyl)-1-phenyl-4,5-dihydro-1H-3-pyrazolyl]-2-methylphenol derivatives.
      
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  set
We define a map from an affine Weyl group to the set of conjugacy classes of an ordinary Weyl group.
      
The propertyC1 resp.C2 is equivalent withG having a compact set of generators, resp.
      
Xi defined a partition ofWf into canonical right cells and the right order ≤R on the set of cells.
      
Let ζ-1/2 be the inverse on the set of regular elements ofu of a square root of the discriminant of.
      
We do this by using an explicit set of coordinates on the Schubert cell.
      
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  series
Finally we show for more than half of the infinite series that a presentation for the fundamental group of the space of regular orbits ofW can be derived from our presentations.
      
We consider 3-parametric polynomialsPμ*(x; q, t, s) which replace theAn-series interpolation Macdonald polynomialsPμ*(x; q, t) for theBCn-type root system.
      
This is done using a descending series associated to the complex structure and the Borel spectral sequences for the corresponding set of holomorphic fibrations.
      
The list consists of many series defined by simple equations, and of several exceptional superalgebras, among themE(3, 6).
      
We motivate and prove a series of identities which form a generalization of the
      
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~~

利用岩石的天然剩余磁性,研究地貭历史时期古地磁場的变化規律,就是所謂的古地磁学。根据古地磁学的原理和方法,对比不同地区岩层形成年代的相互关系,就是所謂地层的古地磁对比。1960年在綜合了已有的地貭資料和进行典型剖面的野外观測的基础上,采用古地磁的方法对川滇中生代紅层的对比問題作了初步的研究。所得結果表明:分别由川滇两地中生代紅层的岩石标本所測得的紅层形成时期的古地磁极位置,十分接近,都是在現代地理座标的北緯65度、东經145度地区附近。对比已有的成果,这个位置是在侏罗纪古地磁极位置的可能范围以內。因此結論认为,川滇中生代紅层(祿丰組、自流井組、重庆羣)可能同属洙罗紀的产物。过去认为应属上三迭統的云南祿丰紅层和一平浪煤系,看来有提高其层位的必要。

~~

本文从一个同位素周期性的假说出发,提出了一个原子质量的经验公式,在一定条件下比威兹沙克尔公式可多得一个有效数字.并且将各种元素在自然界的分布划分为 z<8、842三个宇称.又估算了地球上元素的年龄为:5.2×10~9年.最后又讨论有关油气田上放射性异常的一些设想.

Where difficulty has been encountered in obtaining good reflections, it has become almost a general practice to use a group of seismometers insteads of a single seismometer in a channel. One of the primary advantages in such a method is to increase the ratio of useful to extraneous energy recorded in seismogram. If the seismometers are too near to each other, benefit is seldom obtained, because all seismometers in a channel might be considered to be placed at a single point and multiple detection is only a method...

Where difficulty has been encountered in obtaining good reflections, it has become almost a general practice to use a group of seismometers insteads of a single seismometer in a channel. One of the primary advantages in such a method is to increase the ratio of useful to extraneous energy recorded in seismogram. If the seismometers are too near to each other, benefit is seldom obtained, because all seismometers in a channel might be considered to be placed at a single point and multiple detection is only a method of increasing the amplitude both of useful and of extraneous energy. As the separation of seismometers becomes large enough, microseism can be assumed as a random noise, the signal to noise ratio will be increased n~(1/2) times by using multiple detection, when the effective waves strike the seismometers fairly well in phase. But where reflected waves from strong dipping or shallow beds are involved, the discriminatory powers of seismometers might defeat its purpose unless the seismometers in each group are closely spaced. Assuming microseisms to be plane waves traveling to the earth surface from random directions, the problem of how far the detection can be improved when the seismometers in a single group are closely spaced is studied in detail. It is shown that the relative amplitude of microseisms in the records depends statistically not only on the numeber of seismometers in a single group, but also on distances between them, the microseismic frequency spectra and the elastic velocity in the medium. The result obtained in this paper can be used as a guide for choosing multiple seismometer confiquration in seismic field operation.

地震勘探組合法中,采用很小的組內检波器間距离吋,組合法仅只起提高接收仪器灵敏度的作用;检波器間距較大情况下,微震干扰可以看作相互独立的随机干扰来研究;但在間距不太大但也不能认为等于零时,組合方法的效果却是个尚待討論的問題。本文假定微震是由传播方向随机改变的平面波形成的,用概率論方法討論了組合地震法对徽震干扰的压制效果。

 
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