助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   截止 在 地质学 分类中 的翻译结果: 查询用时:0.151秒
图标索引 在分类学科中查询
所有学科
地质学
无线电电子学
物理学
电信技术
电力工业
天文学
金属学及金属工艺
仪器仪表工业
自动化技术
更多类别查询

图标索引 历史查询
 

截止
    很抱歉,暂未找到该词条在当前类别下的译词。您可以查看在所有学科下的译词。
相关语句
  “截止”译为未确定词的双语例句
    Experimental Study of T_2 -cutoff values in low-permeability reservoirs
    低渗透储集层T_2截止值实验研究
短句来源
    Till January 2000, there are 37 wells whose object information is group Penglaizhen and depth of wells vary from 800 to 1500 meters.
    截止2000年1月,已累计钻井37口为蓬莱镇组浅层气专探浅井,完钻井深均在800~1500m,完钻层位多在蓬莱镇组中上部,揭示蓬莱镇组地层400~700m厚。
短句来源
    According to result of third resource evaluation,the total conglomeration oil is 1.0747×108t, gas is 485×108m3.The transformation ratio of resource is only percent of 29.73 up to now.
    根据第三次资源评价结果中西部地区总聚油量为1.0747×10~8t,总聚气量为485×10~8m~3。 截止2003年中西部地区共探明石油地质储量3901×10~4t,天然气73.54×10~8m~3,资源转化率仅为29.73%。
短句来源
    According to statistic data, by the ending of 2000 the produced geologic reserves of low permeability oil fields in china is 26.66 × 10~8t, accounting for 25.5% of the total produced reserves.
    据统计,截止2000年底,我国已经动用的低渗透油田地质储量为26.66×10~8t,占全部已动用储量的25.5%。
短句来源
    . But there is nocut-off frequency in the formation where v_5>((1-p_1)/(p_2v_1))~(1/2) so the maximum phase ve-locity of the stonely wave is less than v_5.
    而在v_s>((1-p_1)/p_2v_1)~(1/2)的地层中无截止频率,其最大相速度小于v_s。
短句来源
更多       
查询“截止”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


From the point of view of fracture mechanics, we studied the far displacement field produced by a disk-shaped pure shear fracture and obtained an analytic expression for that field. Then, by using this expression we calculated the form of the impulse and its spectrum and found a relation between the corner frequencies fcα,fcβ of the P and 8 waves and the fracturing radius of the earthquake focus, i.e. fcα = 0.6/t2α = 0.6/al/vr + π/4α) and fcβ = 0.45/t2β = 0.45/a(1/vr + β/4β), where t2α and t2β are respectively...

From the point of view of fracture mechanics, we studied the far displacement field produced by a disk-shaped pure shear fracture and obtained an analytic expression for that field. Then, by using this expression we calculated the form of the impulse and its spectrum and found a relation between the corner frequencies fcα,fcβ of the P and 8 waves and the fracturing radius of the earthquake focus, i.e. fcα = 0.6/t2α = 0.6/al/vr + π/4α) and fcβ = 0.45/t2β = 0.45/a(1/vr + β/4β), where t2α and t2β are respectively the average values on the focal sphere of the impulse widths of the earthquake focus of the P and S waves, vr is the velocity of fracturing, taking as 0.775 β;α,β are the velocities of the P and 8 waves. In neglecting the delay factor of theray paths e-iwr/c, the effect of the absorption of the media resembles a minimum phase-shift filter. Employing Hilbert Transform, the frequency response .B(w) =exp of the media was found, in which t*=r/CQ, where r, the distance from the earthquake focus; c, velocity of waves; Q, quality factor of the media and wm, the high cut frequency. This expression is different from that of Futterman. After taking into consideration of the effect of the absorption of the media and the frequency characteristics of the instruments, the earthquake focal dimension 2a and the seismic moment M0 in the frequency domain were obtained. While in the time domain, fast Fourier Inverse Transform was used to get the impulse response of the media and the instruments and then convolved with the impulse of the earthquake focus to construct the synthetic seismogram. From it we can get the relation between the initial half period T2P and the dimension 2a or impulse width t2α of the earthquake focus. Then draw the nomogram for this relation. From the nomogram we can get 2a, the focal dimension. The value is essentially the same as that obtained in the frequency domain.Based on the relation Ms = 21og(2a) +1/1.5, as the outcomeof the study of fracture processes of the earthquake focus in the light of frecture mechanics, we were able to find the regional shear stressτ0 of the Peking-Tientsin-Tangshan-Zhangjiakou area. Here, η, efficiency of rediation of the earthquake, taking as 0.05: v, Poisson Eatio, taking as 0.252; μ, rigidity modulus, taking as 3.3 1011 dyne/cm2. Computations show that before the Tangshan Earthquake of July 28, 1976, the stress value of the Tangshan-Fengnan area was the highest, reaching a value of 870 bars. But in the Changli area, at a distance of about 100 km away, the stress had a value of only 200 bars. After the Tangshan Earthquake, in the Tangshan-Fengnan area, located in the central portion of the earthquake fault zone, To dropped to 100 bars. However, at both ends of the fault zone, the stress was still very high in value, especially at the southwestern end, in the vicinity of Ninghe, the stress value there was 400-500 bars. Until November 15, 1976, a strong aftershock of magnitude 6.9 occurred here, after which the stress value decreased to 200 bars.

作者从断裂力学观点研究了圆盘形纯剪切破裂产生的远场位移,导出了远场位移的解析表达式.用此表达式计算了远场位移脉冲波形及其谱.求得了P波和S波拐角频率F_(cα)、f_(cβ)与震源破裂半径的关系式,t_(2α)和t_(2β)分别是P波与S波的震源脉冲宽度在震源球上的平均值.V_r是破裂速度,取0.775β,α、β是P波与S波速度.介质吸收的影响,假定在略去路径滞后因子e-(iωr)/c后是最小相移滤波器,应用希尔伯特(Hilbert)变换导出了介质的频率响应公式式中,r为震源距,c为波速,Q为介质品质因数,ω_m为高频截止频率.它与富特曼(Futterman)公式是不一样的.在考虑了介质吸收影响与仪器频率特性影响后,在频率域中求出了震源尺度2a和地震矩M_0.在时间域中,利用快速傅立叶反变换求出介质和仪器的脉冲响应后与震源脉冲折积,求得了合成地震图,用此图得到了地震图初动半周期T_(2P)与震源尺度2a或震源脉冲宽度t_(2a)之间的关系量板.用此量板在时间域中也求得震源尺度2a,与频率域中求得的结果基本一致. 利用从断裂力学观点研究震源破裂过程导出的关系式求出了京津唐张地区的区域剪切应力τ_0,...

作者从断裂力学观点研究了圆盘形纯剪切破裂产生的远场位移,导出了远场位移的解析表达式.用此表达式计算了远场位移脉冲波形及其谱.求得了P波和S波拐角频率F_(cα)、f_(cβ)与震源破裂半径的关系式,t_(2α)和t_(2β)分别是P波与S波的震源脉冲宽度在震源球上的平均值.V_r是破裂速度,取0.775β,α、β是P波与S波速度.介质吸收的影响,假定在略去路径滞后因子e-(iωr)/c后是最小相移滤波器,应用希尔伯特(Hilbert)变换导出了介质的频率响应公式式中,r为震源距,c为波速,Q为介质品质因数,ω_m为高频截止频率.它与富特曼(Futterman)公式是不一样的.在考虑了介质吸收影响与仪器频率特性影响后,在频率域中求出了震源尺度2a和地震矩M_0.在时间域中,利用快速傅立叶反变换求出介质和仪器的脉冲响应后与震源脉冲折积,求得了合成地震图,用此图得到了地震图初动半周期T_(2P)与震源尺度2a或震源脉冲宽度t_(2a)之间的关系量板.用此量板在时间域中也求得震源尺度2a,与频率域中求得的结果基本一致. 利用从断裂力学观点研究震源破裂过程导出的关系式求出了京津唐张地区的区域剪切应力τ_0,式中η为地震辐射效率,取0.05;v为泊松比,取0.252;μ为刚性模量,取3.3×10~(11)达因/厘米~2.结果表明,1976年7月28日唐山大震前,唐山—丰?

In this report the asymptotic directions of approach, the effective vertical cutoff rigidities and the variational coefficients of the Beijing Cosmic Eay Station (40°02'22"N, 116°11'30"E) are calculated on the basis of the Finch and Leaton 1955.0 sixth degree simulation of the quiescent geomagnetic field of internal origin.

本报告依据芬奇和里通1955.0六阶宁静的内源地磁场模式,具体地计算了北京宇宙线台(地理纬度40°02′22″N,地理经度116°11′30″E)的逼近渐近方向、有效垂直截止刚度和变化系数。

The Liyang-Jiexu-Wuyuan strong earthquake belt became the most active seismic belt in north China after the 1976 Tangshan great earthquake. By studying the source mechanism, rupture process, source parameters and migration of strong earthquakes occurring on this belt, a few special features can be noticed:(1) Direction of the rupture surfaces of all earthquakes ML≥5.0 strikes northwest, same as the general strike direction of the belt, showing migration of earthquakes along the direction of rupture.(2) Strong...

The Liyang-Jiexu-Wuyuan strong earthquake belt became the most active seismic belt in north China after the 1976 Tangshan great earthquake. By studying the source mechanism, rupture process, source parameters and migration of strong earthquakes occurring on this belt, a few special features can be noticed:(1) Direction of the rupture surfaces of all earthquakes ML≥5.0 strikes northwest, same as the general strike direction of the belt, showing migration of earthquakes along the direction of rupture.(2) Strong earthquakes migrate usually from the center part of the belt towards both directions of the belt in its northwestern and southeastern elongations. Their magnitudes tend to increase, however, after the Pingyao earthquake of magnitude 5.7 on March 9, 1980, such feature of migration and increase of magnitude no longer appear.(3) Until present, all earthquakes have released their energy by moderate and strong earthquakes. The P axes of tE'e principal compressive stress basically coincide with the direction of the general compressive stress. But a few of them do not, showing local conditions may affect the direction.

溧阳—介休—五原北西向地震条带,是唐山地震后华北地区地震活动最为活跃的地带。通过研究发生在这条带上强震的震源机制,破裂过程,震源参数及迁移特点,发现这条带上的较强地震具有以下特点: 1.M_L≥5.0级地震的破裂面走向均为北西向,与条带的总体走向基本一致。反映这些地震具有沿破裂面方向迁移的特点。 2.强震是从中间向北西及南东两个条带的延伸方向交替扩展迁移的,并且强度有逐个增大的趋势。而1980年3月9日在条带上平遥地区发生M_L=5.7级地震后,再不具备上述迁移,震级增大的特点。 3.截止现在,均以中强震释放能量。其中多数的主压应力P轴与华北地区统一的主压应力方位基本一致,但仍有几个强震与华北地区总体走向明显不同,说明局部条件的影响在这个带上有时可以起主导作用。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关截止的内容
在知识搜索中查有关截止的内容
在数字搜索中查有关截止的内容
在概念知识元中查有关截止的内容
在学术趋势中查有关截止的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社