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standard rock
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  标准岩石
     Research and Designing of Multi-function Testing Device for Standard Rock Samples
     多功能标准岩石试件检测仪的研究与设计
短句来源
     the evolution mechanism of micro cracks in fractured rock mass will be investigated. The achievements are as follows:(1) With ISRM standard rock samples cut with a pair of cracks, uniaxial compression tests are conducted to study the 3D crack evolution mechanism in different lithology rocks.
     (1)采取在标准岩石试样上预制一对边裂纹的办法,获得了岩石三维闭合裂纹,进行了单轴压缩条件下几种不同岩性岩石三维裂纹扩展的宏观试验研究,研究表明,裂纹的起裂、发展和最终贯通与裂纹的倾角、深度,以及岩桥距离和倾角有关。
短句来源
     this method has been applied to the deterimination of Cu(Ⅱ)in the standard rock with satisfactory results.
     研究的新方法应用于标准岩石样品中微量铜的测定,结果满意。
短句来源
     The proˉposed method was applied successfully to the direct determination of zirconium in standard rock samples withˉout extracting and masking concomitant ions.
     该法用于标准岩石样品中锆的测定,不需萃取分离和掩蔽,直接测定,结果满意。 铪(Ⅳ)在同样的实验条件下也于0.85V产生一络合吸附峰,灵敏度稍低于锆。
短句来源
  “standard rock”译为未确定词的双语例句
     In order to test the reliability and applicability of our procedure, thegeocbemical standard rock sample BCR_1 has been measured in up to tenparallel runs. ~(147)Sm/~(144)Nd=0.13843+/- 5 (2 o.) and ~(148)Nd/~(144)Nd= 0.511837 +/- 3 (2 O _M) are obtained.
     稀释法测量美国标准样BCR-1检验,得到其~147Sm/~144Nd比值为0.13843±5(2σ_m),~143Nd/~144Nd比值为0.511837±8(2σ_m)。
短句来源
     This proposed method is used to precisely determine 33 trace element in several standard rock samples, and the relative errors between this work and the recommend values are less than 10% for most trace elements.
     该方法用于多个岩石标样33种微量元素的测定,分析结果与推荐值相比,误差均小于±10%.
短句来源
     SEVERAL PROGRAMS USED BOTH AT HOME ANDABROAD FOR PROCESSING OF STANDARD ROCK ANDORE SAMPLES COMPARED──A SUGGESTION CONCERNING A NEW PROGRAM
     国内外几种岩矿标准样品加工方案的比较讨论——一个新方案的建议
短句来源
     STANDARD ROCK SAMPLE SELECTION FOR ROCK CRACKING IN DRILLING
     石油钻井岩石破碎标准岩样选择
短句来源
     APPLICATION OF SONIC MEASURING TECHNOLOGY TO TWO STANDARD ROCK SAMPLES
     声波测试技术在两种标岩上的应用
短句来源
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  相似匹配句对
     Standard
     标准
短句来源
     Which is the standard?
     采用什么标准评价?
短句来源
     The Rock
     礁石
短句来源
     The Standard for Engineering Classification of Rock Mass
     工程岩体分级标准的研究
短句来源
     STANDARD ROCK SAMPLE SELECTION FOR ROCK CRACKING IN DRILLING
     石油钻井岩石破碎标准岩样选择
短句来源
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  standard rock
The models are correlated with results of image analysing and standard rock engineering experiments that were carried out on a variety of grain mixtures and sedimentary rocks of Permocarboniferous age.
      
An interesting result is that the muon flux is independent of slant depth beyond a depth of about 14 000 hg/cm2 of standard rock, and corresponds to near horizontal muons.
      
These measurements, obtained during a live time period of 11.556 hours, cover a slant depths range from about 3000 to about 20 000 hg/cm2 of standard rock and extend over five decades of intensity.
      
In the present paper, the behaviour of electromagnetic cascade showers including the LPM effect (LPM showers) in standard rock is examined using the calculational technique developed by Fujimaki and Misaki.
      
Electromagnetic cascade showers with the LPM effect in standard rock initiated by extremely high-energy (1015 eV to 1021 eV) gam
      
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A method for quantitative analysis of trace elements in rocks by sparksource mass spectrometry was described. About 10-25 mg of insulating powder rock sample was pressed on the T type electrode with a special model. A single exposure was made under selected conditions.The relative sensitivity coefficients were calculated by U·S·Geological Survey Standard Rock AGV-1.More than 20 elements can be determined by this techique with a typical precision of±20%. The mantle and moon rocks were analyzed by...

A method for quantitative analysis of trace elements in rocks by sparksource mass spectrometry was described. About 10-25 mg of insulating powder rock sample was pressed on the T type electrode with a special model. A single exposure was made under selected conditions.The relative sensitivity coefficients were calculated by U·S·Geological Survey Standard Rock AGV-1.More than 20 elements can be determined by this techique with a typical precision of±20%. The mantle and moon rocks were analyzed by this method.

叙述了一种定量分析岩石中微量元素的火花源质谱法。大约10~25毫克绝缘粉末样品直接压在T型电极上。在选定的分析条件下进行单曝光摄谱。用AGV—1做标准样品,计算相对灵敏度因子。此方法可分析24个元素。相对标准偏差为±20%。做了地幔和月岩等样品分析。

According to a comparison of the experience gained in several programs used both at home and abroad for the processing of standard rock and ore samples, combined with China's reality, this paper proposes an easy and feasible program characterized by high efficiency and low consumption. This-new program has some obvious advantages;

比较了国内外数种岩矿标准样品加工的成熟经验,结合我国实际,建议一个高效低耗并简便易行的加工方案。新方案的特点是在保证合格均匀度的前提下,不用庞大设备,均匀绩分从粒度2毫米开始,磨细的样品重量仅60—70公斤,包装前的混匀操作采用了一个新型封闭式混匀器,可以通用于不同重量岩矿标准样的加工。有一般碎矿设备的实验室都可以承担标样的加工任务。

In PIXE quantitative analysis the thin-target-method is routinely employed to av-oid sophisticated corrections for proton energy loss and X-ray absorption. However, it is extremely difficult to prepare a thin target, especially for powdered geological sam-ples. In this work the simple thick-target sampling technique was adopted and a micro-computer was employed for making corrections on the basis o'f the theory. In this way, 4 USGS standard rock samples were analyzed with reasonably good results achieved.All...

In PIXE quantitative analysis the thin-target-method is routinely employed to av-oid sophisticated corrections for proton energy loss and X-ray absorption. However, it is extremely difficult to prepare a thin target, especially for powdered geological sam-ples. In this work the simple thick-target sampling technique was adopted and a micro-computer was employed for making corrections on the basis o'f the theory. In this way, 4 USGS standard rock samples were analyzed with reasonably good results achieved.All the experimental work was done at the Lawrence Berkeley Lab (LBL), Univ. of California,USA. Samples were pelletized into a. φ8 X lmmhole on a .graphite substrate and then uniformly coated with aquadag to ensure good electric conductivity.The trace elements analyzed are Y, Zr, Rb. Sr, Th, Ge and Zn. The results are in substantial agreement with their certificated values with a relative error of 10-30% depending on the concentration, which is undoubtedly acceptable in view of trace elem-ent analysis.

质子激发X射线发射(PIXE)分析是近年发展起来的一种新的微量分析技术。由于传统方法所要求的薄靶制样等方面的困难,迄今它在地质样品方面的应用尚不多见。本工作针对地质样品的特点,尝试了简单、方便的厚靶制样法,并采用计算机处理技术解决了由此而引起的复杂的理论校正问题。对若干USGS岩石标准样作了试分析,结果是令人满意的,从而为微量元素的地球化学研究开辟了一条新的途径。

 
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