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炸药
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  dynamite
    Factor analysis of rationally selecting optimal excitation condition for dynamite source
    合理选择炸药震源最佳激发条件的因素分析
短句来源
    The research on the explosive mechanism and excitation condition of dynamite source
    炸药震源爆炸机制及激发条件的研究
短句来源
    Analysis of dynamite source pattern in compressional wave exploration
    纵波勘探中的炸药激发方式分析
短句来源
    Analysis of explosive effect of dynamite source.
    炸药震源激发效果分析
短句来源
    Development of new-generation of synchro-control system of dynamite source
    新一代炸药震源同步控制系统的发展
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  “炸药”译为未确定词的双语例句
    This paper has analyzed the difficulties in the exploration of the transitional zone in Kendong area, such as the unfavorable exciting and receiving conditions of the seismic wave and the development of the disturbing wave.
    分析了垦东地区海陆过渡带勘探的难点,针对地震波激发和接收条件差、干扰波发育等特点,在海陆过渡带地震波的激发、接收以及测量等方面进行研究:优选了气枪震源和炸药震源激发参数;
短句来源
    Theory and experimentation of the charge sizes in seismic-sources for seismic exploration
    地震勘探中的炸药震源药量理论与实验分析
短句来源
    The vertical delay stacked source obtains optimum matching with wall rock by controlling the charge mode and the excitation velocity, and maximum utilizes its energy. Thus the seismic signal with the high frequency abundance and frequency bandwidth wide be obtained.
    垂直延迟迭加震源通过控制装药方式和控制炸药速度来达到与围岩的最佳匹配,最大限度的利用其激发的能量,激发出高频成份丰富、频带宽、高频能量高的地震信号。
短句来源
    The recording quality could be much improved with technical approaches, as slurry cementing and tamping after charging.
    钻井所采用的泥浆固井和装炸药后填井等技术措施,对提高记录质量有较大帮助。
短句来源
    The preliminary analysis of integrated geophysical survey which was carried out in the north of South China Sea by joint research group of China and Japan is described in this paper.
    为了研究南海地壳结构,中国和日本合作在南海北部首次进行了以炸药为震源的综合地球物理调查。
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  dynamite
Previous studies show that both dynamite borehole shots and vertical vibrations from controllable seismic sources at the surface will produce relatively strong pure P-waves and weaker pure S-waves.
      
Several solutions have been proposed i.e., to minimize the decision rule, to create mixed juries, or to give the jury the 'dynamite' instructions.
      
In these experiments the plane wave dynamite lenses were used to drive the flying plates.
      
In blasting operations, ANFO (blasting agent), gelatin dynamite (priming), and delay electric detonators (firing) were used as explosives.
      
Rubble is produced by natural and man-made events such as storms, wave agitation, earthquakes, bioerosion, ship groundings, and dynamite fisheries.
      
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he paper describes the data collection parameters used in deep reflection survey conducted by Sino-U. S. joint team in Himalaya region, and analyses the rationality of the parameters and the limitation of the data collection system.The explosive conditions are essential to the recording quality. The reflected waves from the Moho 70-75km in depth, and from beneath the Moho were obtained with shots nominally of 50kg dynamite in a single hole 50m deep or 25kg in each of two holes 25m deep as an shot array.50s recording...

he paper describes the data collection parameters used in deep reflection survey conducted by Sino-U. S. joint team in Himalaya region, and analyses the rationality of the parameters and the limitation of the data collection system.The explosive conditions are essential to the recording quality. The reflected waves from the Moho 70-75km in depth, and from beneath the Moho were obtained with shots nominally of 50kg dynamite in a single hole 50m deep or 25kg in each of two holes 25m deep as an shot array.50s recording length permits the depth penetration to reach as deep as 150-180km in case of horizontal layers.The observation system can hardly suppress the low frequency noises efficiently. Their influences, can be removed with filtering during data processing.

本文介绍了中美联合在喜马拉雅地区进行深反射地震测量中采用的数据采集参数,并分析其合理性及采集系统的局限性。结果表明,采用的参数大多是合理的,试验是成功的。激发条件是影响记录质量的关键,单井50m深50kg炸药的炮或者单井25m深双井组合,50kg炸药的炮能够获得来自70—75km深的Moho及Moho之下的反射震相。50s长的记录长度对于水平层的勘探深度可达150—180km。观测系统对低频干扰波不能进行有效的压制,但在数据处理时可用滤波的方法消除低频干扰波的影响。

he pilot survey of the Sino-American project INDEPTH has provided a highresolution, high-signal-to-noise ratio, near-vertical incidence reflection profile with abundant reflection information, which along with others yields clearly the Main Himalayan Thrust (MHT) and Moho discontinuity at a depth of 70-80km. There still are observed reflections beneath the Moho discontinuity. It is demonstrated by facts, that the near-vertical reflection technique can receive reflections from a depth of 70-80km, with three technical...

he pilot survey of the Sino-American project INDEPTH has provided a highresolution, high-signal-to-noise ratio, near-vertical incidence reflection profile with abundant reflection information, which along with others yields clearly the Main Himalayan Thrust (MHT) and Moho discontinuity at a depth of 70-80km. There still are observed reflections beneath the Moho discontinuity. It is demonstrated by facts, that the near-vertical reflection technique can receive reflections from a depth of 70-80km, with three technical measures, such as 50m deep shot holes, 50kg dynamite and 50s superlong recording time, taken. It is obvious, that both the depth o f shot hole and the lithology excited are interdependent factors, affecting recording quality. Data analysis indicates, that shot in a single drill hole of depth more than 25m yields good recording,while array shot in drill holes of depth less than 25m can hardly receive deep reflections. The recording quality could be much improved with technical approaches, as slurry cementing and tamping after charging. During seismic data processing in view of the fact, that the lithology excited along the profile is varied very dramatically. surface consistency processing of wavelets and noise elimination were made, resulting in great improvement of the deep reflection stacked section in quality.

中美INDEPTH项目第一阶段先导性试验,提供了高分辨率、高信噪比和反射信息非常丰富的近垂直反射剖面。其中主喜马拉雅滑脱界面(MHT)和深达70—80km的Moho,清晰可见;Moho以下仍有反射信息。事实证明.采用井深50m、药量50kg和50s超长记录长度3个技术措施后,近垂直反射技术可以取得深部反射信息。在工作中井深和激发岩性是影响记录质量的两个互相依赖的重要因素。资料分析表明.井深大于25m的单孔爆炸,其记录质量较好,而井深大于25m组合的炮记录,几乎接收不到深反射信息。钻井所采用的泥浆固井和装炸药后填井等技术措施,对提高记录质量有较大帮助。在地震数据处理工作中,针对激发岩性沿线变化剧烈,我们做了地表子波一致性处理和去噪处理,极大地提高了深反射叠加剖面的质量。

The preliminary analysis of integrated geophysical survey which was carried out in the north of South China Sea by joint research group of China and Japan is described in this paper. In order to further understand the crustal construction, the relationship of continental and oceanic crusts in the north of South China Sea, the seismic refraction survey was mainly carried out using dynamite as the source and OBS (Ocean Bottom Seismometer) as the receiving system for the first time in China. After data processing...

The preliminary analysis of integrated geophysical survey which was carried out in the north of South China Sea by joint research group of China and Japan is described in this paper. In order to further understand the crustal construction, the relationship of continental and oceanic crusts in the north of South China Sea, the seismic refraction survey was mainly carried out using dynamite as the source and OBS (Ocean Bottom Seismometer) as the receiving system for the first time in China. After data processing and preliminary analyzing, the main characteristics of the crustal construction are as follows. The crust in the north of South China Sea can be divided into sedimentary, upper,intermediate and lower crusts. The crustal thickness is large and stable in the area of continental shelf and upper slope and is decreased and unstable in the area of lower slope except the intermediate crust. The crust can be divided into three layers in the deep oceanic basin,of which the crustal thicknesses are relatively thinner than those in the continental shelf and slope area. The high velocity layer of 7. 3km. s-1 could not be observed below the oceanic crust. The following is the crustal thickness in different areas.The continental crustal thickness ranges from 26 to 30km. The transitional crustal thickness ranges from 13 to 22km. The oceanic crustal thickness is skin.

为了研究南海地壳结构,中国和日本合作在南海北部首次进行了以炸药为震源的综合地球物理调查。经初步分析其地壳结构主要特征为:南海北部地壳分为沉积层、上地壳层、中地壳层及下地壳层。大陆架及上陆坡地壳厚度大、稳定。下陆坡地壳厚度除中地壳外,其他壳层厚度减薄且不稳定。深海盆地壳分3层,厚度虽薄但相对稳定,其底部缺失7.3km·s-1的高速层。测区内地壳总厚度:陆壳26—30km,过渡壳13—22km,洋壳为8km。

 
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