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  大陆
    The Time-Space Distribution of Precipitable Water over the Mainland of China
    中国大陆上空可降水的时空分布
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    Water Vapour Transport over the Mainland of China
    中国大陆上空的水汽输送
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    STUDY ON THE GRAVITY TIDE PARAMETERS AND THEIR CHARACTERISTICS IN THE MAINLAND OF CHINA
    中国大陆重力潮汐参数及其特征研究
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    Relationship between Seismic activity in deep seismic belt un- der the Sea of Japan-the Sea of Okhotsk and the earthquakes in the Mainland China
    日本海-鄂霍次克海深震带地震活动与中国大陆地震的关系
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    The earthquake migration in the southeast coastal seismic belt at the mainland in China
    中国大陆东南沿海地震带地震迁移规律
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  大陆地区
    All kinds of anomalies provided by the weekly, monthly and yearly seismic symposiums are used comprehensively to study the application of the frequency of the precursors to earthquake prediction within the mainland of and China spatial temporal evolution of seismicity.
    依据中国地震局分析预报中心的周、月会商会和年度会商会所提供的综合前兆异常,即震前所提出的各类前兆异常,研究了中国大陆地区内的综合前兆异常月频次在地震预报中的应用和时空演化特征。
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    The results indicate that (1) Average Pn velocity in Xinjiang region is 8.2 km/s, which is higher than the average 8.0 km/s for the mainland of China. The velocity varies from -0.3 km/s to 0.2km/s.
    主要结果是 :①新疆地区平均Pn速度为 8 2km s ,高于中国大陆地区的平均值 (8 0km s) ,速度变化量从 - 0 3km s到 0 2km s.
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    Based on the method, the variation of the coefficient with 22 years cycle and 10 years cycle from 1890 to 2002 in the mainland of China is analyzed. The results show that the seismic active period and the occurrence of M≥7.5 earthquakes were mainly at the descending segment of the coefficient with 22 years cycle, whereas, the quiet period was at the ascending segment.
    应用该方法对中国大陆地区1890~2002年22年左右与10年左右周期(活跃期与平静期组成一个周期)内地震活动周期系数的变化过程进行了分析,结果表明,中国大陆地区的地震活跃期及7.5级以上地震的发生时段处于22年周期系数曲线的下降过程中,而平静期则与周期系数曲线的上升过程相对应。
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    By using the large earthquake sequences with M≥7 occurred in the mainland of China since 1897, authors systematically discussed the temporal distribution of the seismicity. The medium-term method of earthquake prediction based on the Weibull model with the weight is put forward in accordance with the ununiform distribution of the events along the time axis.
    本文基于1897年以来我国大陆地区7级大震实际观测序列,对7级大震的时间分布特征进行了较系统的分析与研究,并针对不同时期地震活动在时间轴上分布不均匀的特点,引入了地震危险随时间增长的加权韦布尔中期预测方法。
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    Since 1900 one to three years before 7 earthquakes of M ≥7 0 occurring in Sichuan Province,great earthquakes of M ≥7 7 took place in the mainland of China.
    自 1 90 0年以来四川地区发生的 7次 7级以上地震之前1~ 3年中国大陆地区都发生过 7.7级以上的巨大地震。
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    The spatial characteristic of the short term and imminent anomalies of water radon before earthquake in the mainland of China
    The spatial characteristic of the short-term and imminent anomalies of waterradonbe┐foreearthquakeinthemainlandofChina
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    The VIC model combined with a new surface runoff parameterization, which takes into account the effects of soil heterogeneity on Horton and Dunne runoff, is applied to runoff simulation over the mainland area of China.
    VIC模型中新的地表径流参数化方案考虑了蓄满产流、超渗产流机制,以及土壤性质非均匀性对产流的影响。
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    (3)the water vapour transport over the mainland of China comes mainly from the south boundary, and escapes from the east boundary, the inflow of water vapour is dominated mainly by meridional circulation, and outflow is dominated by zonal circulation;
    分析指出,我国上空的水汽主要从南边界输入,从东边界输出。 经向环流是水汽输入的主要机制,纬向环流是水汽输出的主要机制;
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    This paper discussed the cause of the higher prediction and lower activity in re -cent estimations of the strong earthquake tendency in the mainland of China.
    本文对我国近几年强震活动趋势估计出现高预报和低活动的原因进行了探讨。
短句来源
    This paper summarizes the technological progress of the Chinese petroleum geophysical industry in recent years and analyzes in detail the trend of development in the petroleum industry as well as the main challenges to geophysical techniques on the mainland. Proposals to improve the situation have also been put forward.
    本文系统地总结近年来中国石油物探技术的进步和成果,详细分析了当前中国陆上石油工业的发展趋势及主要物探技木需求,提出了下一步物探技术发展的主要方向。
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  the mainland
The genetic differences between the fish from Nandujiang River and those from the mainland indicated that they were separated early.
      
From September 2001 to 2003, a total of 1077 cases of SPH distributed in 135 hospitals all over the mainland of China were included for analysis.
      
Distribution of water vapor content (WVC) and its seasonal variation over the mainland of China
      
Based on the meteorological data of 105 aerological stations during the period of 1960-1969, the monthly average water vapor content (WVC) in air column over the mainland of China is calculated.
      
In the second population, located on the mainland (Herdsman Lake), snakes feed mostly on frogs (small prey).
      
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On the basis of meteorological data observed at suonding stations during the period of 1961-1975, the time-space distribution of precipitable water over the mainland of China are studied,and the isoline-maps of precipitable water, such as the mean annual precipitable water, and the mean monthly precipitable water have been made. At the same time, the following facts have been pointed out in this paper: (1) The average value of the water vapour content in the atmosphere over the area is about 144.5 km3;...

On the basis of meteorological data observed at suonding stations during the period of 1961-1975, the time-space distribution of precipitable water over the mainland of China are studied,and the isoline-maps of precipitable water, such as the mean annual precipitable water, and the mean monthly precipitable water have been made. At the same time, the following facts have been pointed out in this paper: (1) The average value of the water vapour content in the atmosphere over the area is about 144.5 km3; (2) There exihibits alternately a tendency of variation about a continuous years with abundant and low annual average precipitable water; (3) The monthly average precipitable water presents seasonal variation in its amount and distribution; (4) The coefficient of variation of precipitable water has been analysed and it presets seasonal variation. Finally, the paper points out the similarity relationship of the time-space distribution between precipitable water and precipitation.

本文利用全国100多个探空站1961—1975年的探空资料,分析了我国大陆上空可降水的时空分布;计算了我国大陆上空大气中的总水汽量,多年平均值为144.5公里~3;分析了可降水的逐年变化,指出其具有丰枯变化的性质;分析了可降水的年内变化,从大气的湿度特征反映了我国季风气候的特点;分析了反映可降水多年变化的离差系数及其地理分布;最后指出可降水时空分布与我国多年平均的年、月雨量时空分布特征十分近似。全文比较系统地描述了我国大陆上空可降水时空分布的基本轮廓和主要特点。

On the basis of computing the atmospheric vapour transport over the mainland of China during the period of 1973-1981, following points have been pointed out:(1)the average annual total inflow, total outflow and net inflow of the atmospheric vapour passing through all the boundaries of the area;(2)distribution of atmospheric vapour transport along the different boundaries, different altitudes with different seasons;(3)the water vapour transport over the mainland of China comes mainly from the south...

On the basis of computing the atmospheric vapour transport over the mainland of China during the period of 1973-1981, following points have been pointed out:(1)the average annual total inflow, total outflow and net inflow of the atmospheric vapour passing through all the boundaries of the area;(2)distribution of atmospheric vapour transport along the different boundaries, different altitudes with different seasons;(3)the water vapour transport over the mainland of China comes mainly from the south boundary, and escapes from the east boundary, the inflow of water vapour is dominated mainly by meridional circulation, and outflow is dominated by zonal circulation; (4)the relationship between moisture vapour transport and the areal and seasonal distribution of precipitation, (5)the main factors affecting atmospheric vapour transport over the mainland of China;(6)characteristics of the atmospheric vapour transport over the humid, arid and semi-arid zones of China.

本文根据1973—1981年中国大陆上空气象资料,计算了此空域的水汽输送量,给出了中国大陆上空多年平均的水汽年总输入量,总输出量和净输入量,水汽输送的季节变化和在不同边界上水汽输送的垂直分布。分析指出,我国上空的水汽主要从南边界输入,从东边界输出。经向环流是水汽输入的主要机制,纬向环流是水汽输出的主要机制;初步探讨了水汽输送与我国降水分布和季节变化的关系;在本文中还比较了湿润区与干旱、半干旱区水汽输送的特点,阐述了这些特点对当地水文循环和水资源状况的影响。

The preparation gap method has been extensively applied to earthquake prediction practice in China and some strong earthquakes are successfully forecasted with help of this method. It is found that the false alarm rate and rate of failing to forecast by using this method are still higher according to systematic study of earthquake cases. In this paper authors applied the renormalization group method, which has been used to the critical phase transformation, to give the criterion of strong earthquake occurrence...

The preparation gap method has been extensively applied to earthquake prediction practice in China and some strong earthquakes are successfully forecasted with help of this method. It is found that the false alarm rate and rate of failing to forecast by using this method are still higher according to systematic study of earthquake cases. In this paper authors applied the renormalization group method, which has been used to the critical phase transformation, to give the criterion of strong earthquake occurrence due to crack's instable extesion possibly created in preparation gaps and further distinguish the risk of the preparation gaps, then to solve the cusp catastrophic equation with the catastrophism method to predict time and magnitude of future strong earthquake in the gaps, finally to get a better determination of earthquake risk in the preparation gaps. The method proposed in this paper is applied to the preparation gaps formed before 26 strong earthquakes in the mainland of China. The results show that the method which combines the index of prepqration gaps with renormalization group theory and catasrophism theory to identify the risk of preparation gaps and predict the magnitude and time of future earthquakes, may significantly improve the earthquake prediction. The false alarm rate of this method is reduced to 20%, the rate of failing to forecast is reduced to zero. Therefore, R value (represents the quality of prediction ) rises from about 0.3 to 0.8. The further perspective tests are necessary fqr the above-mentioned results and conclusions, that is, to study the cases in which preparation gaps have ocurred but no corresponding earthquakes observed, and to make some prediction for the possible earthquakes and to evaluate the efficiency of the method.

在中国,孕震空区已经比较广泛地应用于地震预报的实践,并多次取得实际预测强震的效果。但经过系统震例研究发现,利用孕震空区预报地震的虚报漏报率比较高。本文运用解决临界相变问题的重正化群方法所求出的孕震空区可能发生失稳破裂,导致强震发生的判据对孕震空区的危险性作出进一步鉴别,并用突变论方法求解尖拐突变方程,预测孕震空区未来发生强震的时间和震级,并进一步确定孕震空区的危险性。对26个中国大陆强震前的孕震空区,运用上述方法系统研究结果表明:综合利用孕震空区识别标志,重正化群和突变论方法来鉴别孕震空区的危险性及预报未来地震发震的震级和时间,可以显著提高用空区预报地震的效果,其虚报率可减少到20%漏报率减少为0,从而使表征预报效果的R值从0.3左右增加到0.8左右。当然本文的结果尚须作进一步展望性检验,即对还未发生地震而出现孕震空区的情况进行研究,以期事先作出某种预报并确切估计出本方法的真实预报效率。

 
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