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  station
     Study of Optimal Control of Multipurpose Station Refining and Transmission System
     联合集输系统最优控制律研究
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     Study on Models and Algorithms of Automatically Making Stage Plan for Railroad Locomotive Depot Station
     区段阶段计划自动编制模型和算法研究
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     Research on the Layout & Evaluation Method and Application Technology of Urban CNG Filling Station
     城市天然气汽车加气布局规划与评价方法及其实施技术研究
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     The Research on Electromagnetic Compatibility Technique in Broadband Wireless Access Base Station
     宽带无线接入基电磁兼容技术的研究
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     Research on the Control of Deformation during Construction of Deep Excavation Adjoining Operating Metro Station
     同厅平行换乘地铁车深基坑施工变形控制研究
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     Study of Safety Forecast Theory and Real-time Monitoring Technique for Switching Overvoltage of Large Power Stations
     厂操作过电压的安全预测理论与实时监测技术研究
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     Study on Containers Transport Organization between Railway Network Container Freight Stations
     结点间铁路集装箱运输组织的理论与方法研究
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     Operation Optimization of Long-Distance Natural Gas Transmission Pipelines and Compressor Stations Load Scheduling
     天然气长输管道运行优化及压气负荷调度研究
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     Study on the Regional Tropospheric Delay 4-Dimension Modeling and Applications Based on the Multiple Reference Stations Networks
     基于参考网络的区域对流层4D建模理论、方法及应用研究
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     Preliminary Analysis of the Data of the Peanheng and Miyan Gravity Earth Tide Stations before Tangsheng Earthquake
     唐山地震前北安河和密云重力固体潮台资料的初步分析
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  railway station
     Conclusion This grey model was suitable for forecasting air pollution by SO2 and NOx in area of Shanghai railway station.
     结论 灰色模型适合上海地区空气SO2和NOx的污染预测。
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     An Approach and Implementation of Transparent Mobile IP in the Intranet about Shanghai Railway Station
     铁路上海Intranet网中透明移动IP的实现方法
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     Performance Analysis of an ATM Network of Shanghai Railway Station
     上海ATM网络性能分析
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     ve To analyze and forecast the air pollution by SO2 and NOx in area of Shanghai railway station.
     目的 分析并预测上海火车(上海)地区空气SO2和NOx污染状况。
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     Production and Quality Control of Concrete for 9.9m Platform of the Shanghai Southern Railway Station
     上海铁路南工程9.9m平台混凝土的生产与质量控制
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     The Study of RRM and QoS in 3G WCDMA System and Research on the Realization of WCDMA BTS
     3G WCDMA无线资源管理与业务质量保证问题及WCDMA基实现技术研究
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     A Study on the Key Technique of Smart CDMA Repeater
     CDMA智能直放关键技术研究
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     Research on Kinematic GPS Positioning Relative to a Moving Reference
     基于移动参考的GPS动态相对定位算法研究
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     The Study on Key Factors of Electronic Government One-Stop-Service
     电子政府一式服务关键因素研究
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     Preliminary Analysis of the Latitude Observation Data Obtained During the Period (1975—1980) at Wuchang Time Observatory
     武昌时辰1975—1980年纬度观测资料的初步分析
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  station
The result proves that the mobile station of WCDMA cannot provide the required transmitting power on the specified frequency band and data rate, and the symmetrical capacity in an up-downlink cannot meet the requirement of a mobile Internet.
      
To make RMAC fit WSN better, we designed an easy and efficient routing protocol base station flooding (BSF) and then integrated it with a MAC protocol timing out MAC (TMAC) [1], while traditionally BSF and TMAC work separately at two layers.
      
Zoning by Functions of Small-Scale Forest Ecosystems: A Case Study of Hui-Sun Forest Station in Taiwan Province, China
      
Based on the result and extensive risk communications, combined with the management experience of the Beijing Forest Protection Station, the authors proposed some effective control measures to prevent the invasion of the three pests into Beijing.
      
The total station was used to sample the relative coordinates data at four corners of the temporary sample plot and of each tree in the field.
      
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  stations
The species composition, biomass, abundance, and species diversity of zooplankton were determined for samples collected from August 2002 to May 2003 from 14 stations in Yueqing Bay, China.
      
It was developed for the Shanghai Supercomputer Center (SSC) as one of the computing power stations of the China National Grid (CNGrid) project.
      
Monitoring of Microbial Degraders in Manned Space Stations
      
A synchronous conflict model for a group of K>amp;gt;1 stations is designed and used in evaluating the stability of the capacity of the random multiple access method with increasing number of stations and the station individual speed.
      
The traffic capacity of a network with a finite and infinite number of work stations, the asymptotic stationary distribution of state probabilities, and the main probabilistic-time characteristics of a network are determined.
      
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  railway station
The process of rural depopulation, balanced by the growth of employment in industry and services, is reflected in a secondary knot of settlement around Cirkovce's railway station.
      
This article examines the relationship between immigration and urban renewal in Naples during the 1990s through the conflicting representations and uses of Piazza Garibaldi, a large piazza located in front of the city's central railway station.
      
Empirical results suggest that while a residential property of larger size, higher floor level, and better view commands a higher transaction price, a property lying closer to the mass transit railway station also commands a price premium.
      
The focus is on preferences for different feeder modes, railway station types and train service types as well as on the relative influence of time elements and transfer penalties.
      
Railway station proximity is addressed from two spatial considerations: a local station effect measuring the effect for properties with in 1/4 mile range and a global station effect measuring the effect of coming 250 m closer to the station.
      
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It is pointed out in this paper that the following apparent discrepancies exist in Coulomb's Theory: (1) In any problem in mechanics, a force to be definite must have all the three factors involved under consideration. In Coulomb's Theory, however, the point of application of the soil reaction on the plane of sliding is somehow neglected, thus enabling the arbitrary designation of the obliquity of the earth pressure on the wall to be equal to the friction angle between the wall surface and soil. As a matter...

It is pointed out in this paper that the following apparent discrepancies exist in Coulomb's Theory: (1) In any problem in mechanics, a force to be definite must have all the three factors involved under consideration. In Coulomb's Theory, however, the point of application of the soil reaction on the plane of sliding is somehow neglected, thus enabling the arbitrary designation of the obliquity of the earth pressure on the wall to be equal to the friction angle between the wall surface and soil. As a matter of principle, the point of application should never be slighted while the obliquity of the earth pressure could only have a value that is compatible with the conditions for equilibrium. (2) If the point of application of the soil reaction is taken into account in the problem, the sliding wedge would only tend to slide either on the plane of sliding or on the surface of wall but not on both at the same time, thus frustrating the very conceptidn of sliding wedge upon which Coulomb's Theory is founded. (3) The above discrepancies arise from the fact that the shape of the surface of sliding should be curvilinear in order to make the wedge tend to slide as desired, while Coulomb, however, adopted a plane surface instead. (4) Coulomb, in finding the plane of sliding, made use of the maximum earth pressure on the wall (for active pressure), which refers to the different magnitudes of pressure corresponding to different assumed inclinations of the plane of sliding. But from the relation between the yield of wall and amount of pressure, this maximum value is really the minimum pressure on the wall, which it is the purpose of the theory to find. In engineering books, however, this terminology of maximum pressure has caused considerable confusion, with the result that what is really the minimum pressure is carelessly taken as the maximum design load for the wall. How can a minimum load be used in a design?This paper also attempts to clarify some contended points in Rankine's Theory: (1) It is claimed by Prof. Terzaghi that Rankine's Theory is only a fallacy because of the yield of wall and that of the soil mass on its bed. This charge is unjust as it can be compared with Coulomb's Theory in the same respect. (2) Some books declare that Rankine's Theory is good only for walls with vertical back, but it is proved in this paper that this is not so. (3) It is also generally believed that Rankine's Theory is applicable only to wall surfaces with no friction. This is likewise taken by this paper as unfounded and illustration is given whereby, in this regard, Rankine's Theory is even better than Coulomb's, because it contains no contradiction, as does Coulomb's.

本文從力學觀點對庫隆理論提出下列問題:(1)在解算力學問題時,每個力有三個因素都該同時考慮,但庫隆對土楔滑動面上土反力的施力點竟置之不理,因而才能對擋土墙上土壓力的傾斜角作一硬性假定,使它等於墙和土間的摩阻角,然而施力點是不能不管的,因而土壓力的傾斜角是不能離開平衡條件而被隨意指定的。(2)如果考慮了土反力的施力點,則土楔祇能在滑動面上,或在墙面上,有滑動的趨勢,而不能同時在兩個面上都有滑動的趨勢,因而庫隆的基本概念“滑動土楔”就不住了。(3)問題關鍵在滑動面的形狀;如要使土楔在滑動面和墙面上同時有滑動趨勢,則滑動面必須是曲形面,然而庫隆採用了平直形的滑動面。(4)庫隆的土楔滑動面是從墙上最大的土壓力求出的(指主動壓力),這裏所謂“最大”是指適應各個滑動面的各個土壓力而言,但對適應墙在側傾時土壓力應有的變化來說,這個最大土壓力却正是墙上極限壓力的最小值。一般工程書籍,以為這土壓力既名為最大,就拿它來用作設計擋土墙的荷載,荷載如何能用最小的極限值呢?本文對朗金理論中的下列問題作了一些解釋:(1)朗金理論在擋土墙的位移問題上所受的限制,是和庫隆理論一樣的,竇薩基教授曾就此問題認為朗金理論是幻想,似乎...

本文從力學觀點對庫隆理論提出下列問題:(1)在解算力學問題時,每個力有三個因素都該同時考慮,但庫隆對土楔滑動面上土反力的施力點竟置之不理,因而才能對擋土墙上土壓力的傾斜角作一硬性假定,使它等於墙和土間的摩阻角,然而施力點是不能不管的,因而土壓力的傾斜角是不能離開平衡條件而被隨意指定的。(2)如果考慮了土反力的施力點,則土楔祇能在滑動面上,或在墙面上,有滑動的趨勢,而不能同時在兩個面上都有滑動的趨勢,因而庫隆的基本概念“滑動土楔”就不住了。(3)問題關鍵在滑動面的形狀;如要使土楔在滑動面和墙面上同時有滑動趨勢,則滑動面必須是曲形面,然而庫隆採用了平直形的滑動面。(4)庫隆的土楔滑動面是從墙上最大的土壓力求出的(指主動壓力),這裏所謂“最大”是指適應各個滑動面的各個土壓力而言,但對適應墙在側傾時土壓力應有的變化來說,這個最大土壓力却正是墙上極限壓力的最小值。一般工程書籍,以為這土壓力既名為最大,就拿它來用作設計擋土墙的荷載,荷載如何能用最小的極限值呢?本文對朗金理論中的下列問題作了一些解釋:(1)朗金理論在擋土墙的位移問題上所受的限制,是和庫隆理論一樣的,竇薩基教授曾就此問題認為朗金理論是幻想,似乎是無根據的。(2)有些工程書中認為朗金理論是專為垂直的墙?

The current methods of analyzing flood-causing storm data are rather empirical and unsatisfactory. This is owing to lack of a theoretical scheme analyzing the conflux of surface and channel flows derived from runoff due to rainfall on the drainage basin. Lately, since the writer made a tentative approach to the formulation of such a scheme [1], [9], he further found that as engineers are already not satisfied with a single value of peak discharge in answering the demands of engineering design and require the...

The current methods of analyzing flood-causing storm data are rather empirical and unsatisfactory. This is owing to lack of a theoretical scheme analyzing the conflux of surface and channel flows derived from runoff due to rainfall on the drainage basin. Lately, since the writer made a tentative approach to the formulation of such a scheme [1], [9], he further found that as engineers are already not satisfied with a single value of peak discharge in answering the demands of engineering design and require the data of a flood hydrograph that corresponds to a given probability of happening, then in answering the requirement for flood-causing storm data, they will also not be satisfied with the data in the present form of duration and average intensity of rainfall and will refuire it in the form of hyetograph that produces the maximum flood hydrograph. In respect to analyses of thunderstorm data on small drainage basins, this paper points out the deficits of the current methods and proposes a method of time series for finding the hyetograph corresponding to any given probability of its occurrence. In respect to analysis of storm data on large drainage basins, the paper discusses the probabilities of occurrences of various forms of precipitation that causes floods and methods of analyses of rainfall depth-duration-area relations and design storms,

我国国境内的洪水绝大部分是由大雨所造成的,因此研究洪水的成因必先分析暴雨的性质。目前动力气象学的已有知识尚不能用来定量地分析降雨的性质,所以必须采用了暴雨资料的一些简单的组成要素,如雨率、雨时和雨面等,它们之间的关系及其出现的概率只能 当地观测资料所绘出的关系线、用适线法把代表资料的关系公式推求出来,这样来分析暴雨的性质。 世界各国现行的造洪暴雨资料分析方法是不完善的,其理论基础是很薄弱的O这主要是由於以往对於更基本的流域的雨水怎样汇成河中流率的力学分析没有能得出一套理论系统来,困而无从确知究竟需要怎样的暴雨资料。近年作者总结了降水集流的理论系统〔丑〕〔9〕後,认为对於洪水资料的要求工程师们饮已不满足於洪案流率一([t]数值,且进而要求相应某一概率的流率时程线,则对於造洪暴雨资料的要求自亦不能满足於雨时及其相应的平均雨率,而应进而要求那个产生最大流率时程线的而率时程线;这些尚民是对於小流域上暴雨资料的分析法而言的。 本文对於小流域上阵雨资料的分析法指出了现行雨率——而时——概率关系分析法的本质和缺点、用年法延长系列和用日雨量等值线插补雨季——而时关系法的不合理性,并建议了一种推求相应一定概率的雨...

我国国境内的洪水绝大部分是由大雨所造成的,因此研究洪水的成因必先分析暴雨的性质。目前动力气象学的已有知识尚不能用来定量地分析降雨的性质,所以必须采用了暴雨资料的一些简单的组成要素,如雨率、雨时和雨面等,它们之间的关系及其出现的概率只能 当地观测资料所绘出的关系线、用适线法把代表资料的关系公式推求出来,这样来分析暴雨的性质。 世界各国现行的造洪暴雨资料分析方法是不完善的,其理论基础是很薄弱的O这主要是由於以往对於更基本的流域的雨水怎样汇成河中流率的力学分析没有能得出一套理论系统来,困而无从确知究竟需要怎样的暴雨资料。近年作者总结了降水集流的理论系统〔丑〕〔9〕後,认为对於洪水资料的要求工程师们饮已不满足於洪案流率一([t]数值,且进而要求相应某一概率的流率时程线,则对於造洪暴雨资料的要求自亦不能满足於雨时及其相应的平均雨率,而应进而要求那个产生最大流率时程线的而率时程线;这些尚民是对於小流域上暴雨资料的分析法而言的。 本文对於小流域上阵雨资料的分析法指出了现行雨率——而时——概率关系分析法的本质和缺点、用年法延长系列和用日雨量等值线插补雨季——而时关系法的不合理性,并建议了一种推求相应一定概率的雨率时程线的方?

Based on wind data at 200 mb over Tateno,Japan,for June—august,1950—1956.We discussed the variation of wind field during the last stageof Mai-yü in eastern Asia.It is found that the northward displacement ofwesterly Jet stream and the appearrance of easterly wind is a good indexof the end of Mai-yü period and the beginning of prevailing summer sea-son.Besides,the 5-days mean cross sections of zonal wind along 140°Efor the period of June and July,1954—1956 are constructed.From themwe further found that during...

Based on wind data at 200 mb over Tateno,Japan,for June—august,1950—1956.We discussed the variation of wind field during the last stageof Mai-yü in eastern Asia.It is found that the northward displacement ofwesterly Jet stream and the appearrance of easterly wind is a good indexof the end of Mai-yü period and the beginning of prevailing summer sea-son.Besides,the 5-days mean cross sections of zonal wind along 140°Efor the period of June and July,1954—1956 are constructed.From themwe further found that during the last stage of Mai-yü,with the northwardretreat of the upper westerlies over Japan,the subtropical ridge apparantlyshifts northward and the typhoons which were limited to the south westernpart of the Paciffic now begin to invade East sea and Yellow sea one byone.These facts are probably helpful to predication.

根据1950—1956年6—8月日本馆野上空200毫巴的每天测风材料,定出在东亚梅雨结束期的风向、风速转变的奇异性.我们发现馆野上空西风急流的消失和东风的出现,是东亚梅雨结束和盛夏开始时期的一个良好的标记.另外,又作了1954—1956年东经140度各年6—7月每5天平均东西风风速剖面图.我们发现在东亚梅雨结束时期,日本上空的高空西风北撤,太平洋副热带高压脊显著北伸,并且西南太平洋上的颱风便一个接一个侵入东海黄海.这种特徵各年都是相似的,因此可能有一定的预告价值.

 
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