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重复时间     
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  repeat time
     By comparing the body wave magnitutes mb, the short period (1 to 10 s) source spectra for the earthquakes with same Ms or Mw in different globle tectonic provinces and the rupture lengthes for the events with different repeat time, the following results are obtained: the stress drops of the events with shorter repaet time in the plate borders are smaller than those of the intraplate events with longer repeat time, the average difference is about 5 times.
     通过发生在全球不同区域内面波震级(或M_w)相同的浅源大地震的体波震级(?) _b、短周期(1—10秒)震源谱以及重复周期不同的地震的破裂长度的对比,可以得出大地震的应力降有明显的地区差异性:发生在板块边缘的地震,重复时间短而应力降低;
短句来源
     We also provide a relationship between rupture length and repeat time, which can be used to estimate the earthquake magnitute for the potential fault with known roupture length and repeat time determined by the geological method or to estimate the repeat time for the known magnitute events.
     文中所给出的大地震的破裂长度与重复时间的关系,可用于某些仅能由地质学方法推断潜在断层长度及重复时间的地区估计潜在地震震级,或者已知震级估计重复时间,以进行灾害预测。
短句来源
  repetition time
     We estimate and measure the sensitive time (≈ 1.82 μs), recovery time (20 ms)and repetition time (0.25s). of the parallal plate optical spark chamber.
     本文以一台平板式光学火花室为例,估算和测量了它的灵敏时间t_s(≈1.82μs)、恢复时间t_r(20ms)和重复时间t_R(0.25s)。
短句来源
     Three dimensional fast low angle shot(3D-FLASH)with fat suppression or water excitation, and different repetition time(TR), echo time(TE)and flip angle(FA)were adopted.
     扫描序列采用伴脂肪抑制(FS)和水激发(WE)的3D-FLASH,采用不同的脉冲重复时间(TR)、回波时间(TE)和反转角(FA),序列分为四组,包括一组WE3D-FLASH和三组FS3D-FLASH序列。
短句来源
     Methods 36 cases suspected of abdominal aortic, iliac and lower extremity artery diseases underwent dynamic 3D T 1 FFE(fast field echo)sequence (repetition time 12 or 20 ms, echo time 4 or 5 ms, flip angle 60°) after intravenous injection of Gd DTPA (0.2mmol/kg body weight).
     方法36例临床疑有腹主动脉、髂动脉或下肢动脉疾病的病人进行增强3D快速梯度回波扫描(重复时间12或20毫秒、回波时间4或5毫秒、反转角60°)。 对比剂用量0.2mmol/kg。
短句来源
     Fhe appropriate PR (pulse repetition time) values for structural quantitative determination of the humic acids are recommended between 5 and 10seconds.
     指出利用~13C—NMR波谱进行腐植酸结构定量研究时,脉冲重复时间PR设5~10秒为宜。
短句来源
     Conclusion: When the pulse sequence repetition time TR is set, whether existing the phenomenon of reverse imaging contrast depend on the selective range of recovery time TI0.
     结论 :在脉冲序列重复时间TR 一定时 ,恢复时间TI 的取值范围决定了是否会出图像对比度反转现象。
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  recurrence time
     Earthquake activity (M≥6.0) in Eastern Yunnan since 1900 is featuring obvious active and quiescent periods, with an average recurrence time of 4 years or so.
     滇东地区1900年以来 M≥6.0级地震的活动存在着明显的活动期和平静期,它的平均重复时间为四年半左右。
短句来源
     Finally,the recurrence time of strong earthquake(M≥7) with serious after effects has been put forward.
     给出了后效严重型的大震(M≥7)的重复时间
短句来源
     DISCUSSION ON THE RECURRENCE TIME OF STRONG EARTHQUAKES WITH SERIOUS AFTER EFFECTS
     后效严重型强震重复时间讨论
短句来源
     Based on the statistics of the recurrence time of paleoearthquakes anil low resistance features of some large earthquake regions in China, a seismic source thermal model has been set up to carry on quantitative calculation.
     本文根据中国七个地区的古地震重复时间统计以及某些大震区的低电阻特性,建立了震源热模型并进行了定量计算。
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  “重复时间”译为未确定词的双语例句
     Conclusion: If the recovery time (TI) is just equal toTI0(TR,T1) calculated ,the tissue doesnt provide signal and the purpose to restrain the signal is attained.
     结论 :如果所选取的恢复时间TI 正好是根据某种组织的弛豫时间T1、所选取的脉冲序列重复时间TR 计算出的TI0,则该组织不提供信号 ,达到抑制信号的目的。
短句来源
     Sagittal imaging T1W (500/50/1) wasperformed firstly and definite unremarkable, then we divided into 4 layer from the top of corpus callosum to the inner skull in sagittal position, slice thickness 6 mm, slice interval 2 mm.
     先行矢状位T1加权定位像的扫描(500/50/1)[重复时间(TR)/回波时间(TE)/激励次数],在完成常规脑扫描确定无异常后,在矢状位图像上定位4层T1加权轴位图像,层厚为6mm,层间隔2mm,位置自胼胝体体部上缘开始,到颅骨下缘。
短句来源
     Results:The optimization parameters in 3D-FFE were TR/TE/flip angle=30ms/9ms/ 20°.
     结果 :3D FFET1WI时 ,重复时间 /回波时间 /翻转角为 3 0ms/9ms/2 0°最佳。
短句来源
     The quality of image for TR<500 ms,TE<25 ms have obvious advantage.
     在SE序列中,应用短重复时间TR(<500ms)和短TE(<25ms)可以得到所谓的T1加权像,在成像质量、对比度上具有明显优势。
短句来源
     FAULT SLIP RATE, EARTHQUAKE RECURRENCE INTERVALS AND AVERAGE STRESS DROP
     断层滑动速率、地震重复时间和平均应力降
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  repeat time
We present two programs for finding this repeat time, one using the orbital period and the other the topocentric positions of the satellites.
      
Both methods show that the repeat time is variable across the constellation, at the few-second level for most satellites, but with a few showing much different values.
      
The repeat time for topocentric positions, which we term the aspect repeat time, averages 247?s less than a day, with fluctuations through the day that may be as much as 2.5?s at high latitudes.
      
Another prediction model, where each movement time between successive keys was corrected for key repeat time for each specific input paradigm, predicted the experimental results more accurately.
      
Dislocations in an event of this nature may exceed 20 m, and the repeat time would probably be at least 400 yr.
      
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  repetition time
Decreased repetition time of measurements improved the quality of results.
      
For T1-weighted images, a repetition time (TR) of 500 ms and an echo time (TE) of 30 or 23 ms was used.
      
This report describes the pituitary gland MRI findings (using a superconducting magnet; 3 mm-slice thickness; spinecho, repetition time 400 ms, echo time 25 ms) in five patients in one family with familial CDI.
      
Images were obtained on four volunteers using both CSE and FSE while varying repetition time, echo time and matrix.
      
Long repetition time (TR) spin-echo (SE) with T2- or proton density weighting is the sequence of choice to detect the brain lesions of multiple sclerosis (MS).
      
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  recurrence time
A frequency analysis of our data revealed a flare recurrence time scale of 1 min.
      
The statistical distributions of bursts in duration, maximum flux, and recurrence time have been analyzed for this source.
      
(1973), this paper has finally obtained a simple approximate formula to be able to estimate the recurrence time intervalTR of earthquake on strike-slip fault.
      
Since the recurrence time of maximum credible earthquake can not be estimated directly from mb, empirical relationships for different seismotectonic provinces are established to convert mb to Ms, which is a suitable magnitude scale for our purpose.
      
(Nat Hazards Earth Syst Sci 2:57-72, 2002), has been stressed here to compute average recurrence time for individual landslides and to forecast their behaviour within reference time periods.
      
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Fulvic acid isolated from Gong-Xian weathered coal was methylated, the methylated portion was dissolved in deuterochloroform (CDCl_3) while the unmethylated was dissolved in dimethylsulfoxide-d_6(DMSO-d_6) and then their ~(13)C-NMR and ~1H-NMR spectra were recorded. Quinonic group was detected in the fulvic acid.

将巩县风化煤黄腐酸甲基化,将甲基化产品溶于重氢氯仿中,未甲基化的溶于DMSO-d_6中,分别记录其~(13)C-NMR和~1H-NMR图谱,检出其中有酸基存在。采用NNE技术和延长脉冲重复时间的方法,对不同类型碳原子的含量做出了较合理的估计。数据表明,芳香族羧酸可能是巩县风化煤黄腐酸的主要结构成分。

We estimate and measure the sensitive time (≈ 1.82 μs), recovery time (20 ms)and repetition time (0.25s). of the parallal plate optical spark chamber. The variousfactors that influence sensitive time are discussed. The ordinary methods to reducesensitive time are dascribed.

本文以一台平板式光学火花室为例,估算和测量了它的灵敏时间t_s(≈1.82μs)、恢复时间t_r(20ms)和重复时间t_R(0.25s)。另外,又着重讨论了影响灵敏时间的各种因素,以及为减小它而采用的一般方法。

Since the Late Pleistocene, the movement of the northern segment of the Honghe fault zone has been different from that of the southern one. At the southern segment movement is primarily characteristic of single right-lateral shearing, whereas at the northern segment, of a compositive right-lateral shearing with faulted-depressional extension. With in the compositive zone in question appears an en-echolon fault pattern due to alternate shearing and fault-depression. From the southeast to the northwest, they are:...

Since the Late Pleistocene, the movement of the northern segment of the Honghe fault zone has been different from that of the southern one. At the southern segment movement is primarily characteristic of single right-lateral shearing, whereas at the northern segment, of a compositive right-lateral shearing with faulted-depressional extension. With in the compositive zone in question appears an en-echolon fault pattern due to alternate shearing and fault-depression. From the southeast to the northwest, they are: Ding Xiling shearing zone, Dali fault-depression,Xiashankou shearing zone, Eryuan fault-depression, Cibihu Lake shearing zone and Jianchuan fault-depression. Geomorphic feature of shear zone and fault-depression is completely different, the former appearing as a narrow valley and the latter, as a basin.This paper is focused on the determination of displacement rates and recurrence intervals of earthquakes of Dixiling shear zone and Dali fault-depression having remained since the late stages of Late Pleistocene. For Dixiling shearing zone, right-lateral displacement rate is 8mm/yr, and vertical slip rate is 1.8mm/yr, with a ratio of 4:1 and for Dili fault-depression, 5mm/yr and 9mm/yr, respectively, with a ratio of nearly 1:2. According to calculations of the parameters of fault displacement,we have found that recurrence intervals for magnitude 6.8 earthquake are 178±29 years. It is consistent with the recurrence interval (150±50 years)of M 6—7 earthquakes from historic seismic records in this area. It may be useful to immediate—long term earthquake prediction.

本文用地质方法确定了全新世以来红河断裂(北段)位错速率:狭谷段(定西岭)水平位错速率8毫米/年,垂直位错速率1.8毫米/年;宽谷段(大理)水平位错速率5毫米/年,垂直位错速率9毫米/年。据断裂位错参数计算,本区6.8级左右地震重复发生的时间间隔是178±29年;它与6—7级历史地震重复时间间隔150±50年在时间尺度上相当,这对地震中长期预报有参考价值。

 
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