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北京市区
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  beijing metropolitan
     Recent years, a large amount of main roads have been built in Beijing metropolitan areas with the fast development of motor vehicles traffic.
     随着机动车交通的迅速发展,北京市区近年来新建、扩建了大量的城市干道。
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  “北京市区”译为未确定词的双语例句
     Process analysis of O_ 3 formation in summer at Beijing
     北京市区夏季O_3生成过程分析
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     It was found that the full length of the CB/S1 gene was 2291 bp and the genotype of the strain CB/S1 was proved to be T5 type.
     结果与结论从北京市区土壤中分离的的棘阿米巴分离株CB/S1的18S rDNA全基因序列分别为2291bp,其基因型属于T5型。
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     RESULTS:No ps 1 E318G missense mutation was found in the three groups.
     结果:本研究所观察的北京市区老年健康人群、散发性痴呆患者、VD患者中未发现ps-1的E318G错义突变。
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     The contamination in Changping District was more serious than other 11 districts in Beijing region, whter mean concentrations of p,p'-DDT and p,p'-DDE in surface soil samples were 102, 15 Hg/kg and 224. 56 μg/kg,respectively.
     在北京市区及12个郊县中,又以昌平区污染最为严重,p,p′-DDT,p,p′-DDE的平均残留量分别高达102.15μg/kg和224.56 μg/kg。
     This study was designed to observe the association of the polymorphisms of inflammatory medium interleukin 6 gene promoter region in circulation with interleukin 6,high sensitive C reactive protein and fibrinogen in circulation among the healthy population in Beijing city,and assess the race difference of the polymorphisms of interleukin 6 gene.
     观察北京市区健康人循环中炎症介质白细胞介素6启动子区基因多态性与循环中白细胞介素6、超敏C反应蛋白和纤维蛋白原的关系,并评价白细胞介素6基因多态性的种族差异。
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     Sanitary Investigation on Ground Water in Tongzhou District, Beijing
     北京市通州地下水卫生学调查
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     On the Transient Population in Chaoyang District of Beijing
     北京市朝阳外来人口研究
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     The line density and area density have been counted.
     的密度。
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     THE VEGETATION OF PEKING
     北京市的植被
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     The Centenarians in Beijing
     北京市的百岁老人
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  beijing metropolitan
An ARPS-CMAQ Modeling Approach for Assessing the Atmospheric Assimilative Capacity of the Beijing Metropolitan Region
      
A coupled ARPS-CMAQ modeling system was applied to investigate the atmospheric assimilative capacity (AAC) of PM10 in the Beijing metropolitan region of China.
      


There is a belt of abnormally high seismic intensity along the line of Sanlihe-Xisi-Deshengmen in Beijing city during the Tangshan earthquake. Various hypothesis as to the cause of this abnormal belt have been suggested.Because the earthquake risk of Beijing city is not negligble and more and more highrise buildings are being erected,it might be necessary to find out the cause resulting in this belt of high seismic risk.Through detailed researches on a typical geological profile and its earthquake response by...

There is a belt of abnormally high seismic intensity along the line of Sanlihe-Xisi-Deshengmen in Beijing city during the Tangshan earthquake. Various hypothesis as to the cause of this abnormal belt have been suggested.Because the earthquake risk of Beijing city is not negligble and more and more highrise buildings are being erected,it might be necessary to find out the cause resulting in this belt of high seismic risk.Through detailed researches on a typical geological profile and its earthquake response by using the extended SAP 5 program,the following main results are obtained:1.It is found that a depression of the underlying bedrock to a depth of 1000-1500 meters plays a dominant role in causing the belt of abnoralty intense earthquake damage in Beijing.2.The calculated predominant periods of the response spectra at different sites above the depression are from 0.85-0.95 see.These conclusions are likely to be helpful to the earthquake-resistant design of high-rise builings in the urban area of Beijing or other similar zones.

北京市区沿三里河—西四—德胜门有一条地震高烈度异常带,其产生异常的原因众说不一。目前北京地区仍存在中等强度地震的波及与威胁,同时该区高层建筑正在日新月异的发展,因而探明这条高烈度异常的成因看来是很必要的。本文回顾了有关场地工程地质条件对地震动的影响的研究进展,详细分析了该区的工程地质和基岩构造情况,利用经作者扩展的SAP 5程序计算了典型剖面的地震反应。结果表明深度在1000—1500米的基岩凹陷对这一高烈度异常似有着控制性的影响。由于地面振动的卓越周期在1.0秒左右,将对该区的长周期结构(如高层建筑和烟囱等)带来不利影响。

The results of analysing the age distribution of antibody against hepatitis A virus (HAV) of urban and suburban populations in Beijing and Shanghai showed that the infectivity of HAV in urban Beijing population began to decrease since 1968, that the tendency of decrease of the infectivity of HAV in urban and suburban Shanghai populations began earlier, around 1955, and it continued to decrease singnificantly since 1968, while the infectivity of HAV in suburban Beijing population remained constant for several...

The results of analysing the age distribution of antibody against hepatitis A virus (HAV) of urban and suburban populations in Beijing and Shanghai showed that the infectivity of HAV in urban Beijing population began to decrease since 1968, that the tendency of decrease of the infectivity of HAV in urban and suburban Shanghai populations began earlier, around 1955, and it continued to decrease singnificantly since 1968, while the infectivity of HAV in suburban Beijing population remained constant for several decades.

本文应用催化模型拟合京沪城乡甲型肝炎(HA)流行率的年龄分布,发现北京市区人群的HA感染力自1968年起开始降低;上海城乡人群的HA感染力下降趋势开始得更早,约在1955年,1968年后其感染力更进一步降低;但北京市郊区人群的HA感染力几十年来却一直保持恒定。

Seismic effect on ground motion is a problem of common interest by seismo-engineer and engineering - seismologist The former stresses to study the effect of seismic ground motion on uPPer structure of buildings, but the latter mainly considers the effect of seismic ground motion on engineering geological conditions of site foundations.

地震地面效应是地震工程和工程地震工作者共同关心的问题.前者着重研究地震动对上部结构的影响,后者则主要从事研究地震动对场地地基工程地质条件的影响.1979年对北京市区所作的一维地震反应分析,得出了土层厚度是影响地震地面运动的主要因素.输入地震动的卓越周期及其加速度峰值对反应谱形状的影响较时程曲线的影响明显.但一维方法只反映有界水平层及地震垂向上传.二维动力有限元地震反应分析改进了上述局限性,它可以研究任意形状的地基地质结构,能够反映埋藏基岩地形对地震波的折射、反射所产生的能量聚、散效应,埋藏基岩地形对地震地面效应的影响比上复松软土层土质不均匀的影响要大.超声地震模型实验首次引入工程地震学的研究课题中,得到了与上述数值分析方法相似的结果,并提出若干新问题.它提供了一种能够全面模拟震源—传播途径—场地地质结构的综合研究方法.

 
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