軌道基線 的英文怎麼說

中文拼音 [guǐdàoxiàn]
軌道基線 英文
orbital base
  • : Ⅰ名詞1. (路軌;軌道) rail; track 2. (比喻辦法、規矩、秩序等) rut; path; course Ⅱ動詞[書面語] (遵循; 依循) follow
  • : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 軌道 : 1 (供火車、電車等行駛的由條形鋼材鋪成的路線) track; pathway; rail; runway; circle; railway 2 (...
  1. Long rails in jointless track are usually made on welded rail site or in railway welded rail factory

    摘要無縫路長鋼常由鐵路焊廠或現場焊地焊接。
  2. In addition, the trajectories of oil droplets entering the hydrocyclone were computed by using the particle obit model. thereby the separation efficiency of the hydrocyclone can be obtained

    另外,本文用顆粒模型計算了進入水力旋流器的油滴顆粒運動跡,在此礎上,得出了水力旋流器的分離效率曲
  3. This model helps to make a non - linear finite element program which is tested and verified by the example in umt

    在此礎上,建立了城市交通橋梁無縫路縱向力的空間一體化力學模型,編制了非性有限元模型,通過實例進行了模型驗證。
  4. In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future

    本文結合重慶市大渡口區「三木花園」開發建設項目,從地下空間靜力結構穩定性分析角度出發,針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於交通的跨度6米,高7 . 5米的地下隧這一具體工程情況,採用2d - 3d -有限元結構分析程序對高層與多層建築物的地礎及其與城市交通使用的地下隧圍巖的應力與位移演變規律進行了有限元數值分析計算,探索了地下空間圍巖與高層或多層建築物地礎之間的相互影響,通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於交通的地下隧狀態等三種不同狀態以及4個水平剖和4個垂直剖等不同情況,從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律: ( 1 )在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖( ux 、 uy )以及應力等值色譜圖( _ 1 、 _ 2 、 _ ( xy ) )等; ( 2 )相同狀態下不同水平與垂直剖的應力_ 1 、 _ 2和_ ( xy )對比分佈曲; ( 3 )不同狀態下相同水平或垂直剖的應力_ 1 、 _ 2和_ ( xy )的對比分佈曲等,為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。
  5. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差,建立了於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星,並在此礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較,先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較,然後針對外場試驗,對非性濾波獲得的定位結果與商業軟體進行了分析比較,並得出結論。
  6. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術,主要研究成果包括以下幾方面:首先,建立了利用兩顆地球靜止衛星進行短定向的數學模型,分析了載波相位干涉測量的適用條件;採用傳統的性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析,數學模擬結果表明在高緯度地區性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的礎上,提出了雙星定向精度衰減因子odop的概念,揭示了雙星定向誤差特殊表現的內部機理,對實際工程應用具有重要的指導意義。
  7. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何關系入手,舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓模型,研究了在地球橢球模型和橢圓模型下由雷達天確定目標坐標的方法,並在此礎上研製了星載合成孔徑雷達系統設計與模擬軟體,完成雷達系統天尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析,最後完成雷達回波信號的模擬。
  8. The study of these lines led to the bohr atom model and on to our present understanding of the electron hull of the atom as described by the orbital atom model which is the basis of all understanding of chemistry

    在對于譜的研究礎上,產生了玻爾原子模型,直至現今描述原子中電子殼層結構的原子模型,該模型是今天我們對于化學的所有認識的礎。
  9. First, the domestic status quo of track inspection and the overseas development of track inspection device are introduced in the thesis. based on the introduction, three schemes to monitor the track irregularity by means o f photoelectric inspection technology are put fonvard in the thesis : using photosensitive diode, using ccd array wfth computer, using ccd array with single chip computer

    論文首先介紹了國內檢測的狀況和國內外檢測設備的發展,分析了各種設備的優劣,並在此礎上提出了採用光電檢測技術對不平順參數進行檢測的三套方案:光敏二極體陣列方式、陣ccd結合工業控制計算機方式和陣ccd結合單片機方式。
  10. In the moment of the number two subway in wuhan being carried into construction, based on the viewpoint of architecture planning, this paper analyzes and studies the metro transfer station and the circumjacent commercial spaces, taking the metro transfer station and the circumjacent commercial spaces in the jiedaokou as case, if provided the development ideas and strategy of urban integral commercial spaces, which were combined with underground commercial spaces it hopes to provide some referenced value to the domestic developing commerce exploitation in the circumambience of railway transportation

    摘要以武漢地鐵二號即將實施為契機,於建築策劃的角度,通過對地鐵換乘站與其周邊商業空間的分析與研究,以街口地鐵換乘站及周邊商業空間為案例,提出以地下商業空間為聯系帶的城市整體商業空間模式發展思路與策略,希望能給國內正在興起的交通周邊物業的開發提供某些參考價值。
  11. By making references to the cases of urban elevated rail transit construction at home and abroad, this article analyses some sensitive problems which are confronted by the construction of urban elevated rail transit, from the aspects of citizens ' mental state, ecological environment, landscape, architecture and economy, and suggests the basic prerequisites for the option of urban elevated rail transit

    摘要對於我國城市高架交通建設所面臨的一些敏感問題,通過國內外一些城市交通建設實例,從市民心理、生態環境、景觀、建築、經濟等方面進行了廣泛的探討,並提出了高架路的本條件。
  12. In the part of orbit control, the main ideas in study is to define the nonlinear control system on a riemann manifold from the global viewpoint, and to build the intimate relation between the geometrical structure of state space and the state equation of nonlinear control system ; in the part of attitude control, the main ideas in study is to deduce mathematical model with good character based on global differential geometry ideas as well as li group and li algebra, moreover, to design corresponding control schemes

    控制部分,研究的主要思想是從整體化的觀點出發定義一種建立在riemann流形上的非性控制系統,將狀態空間的幾何結構與控制系統的狀態方程建立直接的聯系。在姿態控制部分,研究的主要思想是以整體微分幾何方法為工具,以李群與李代數等數學理論為礎,從數學角度建立具有良好性能的數學模型,並設計出相應的控制方法。
  13. On the basics of guangzhou city urban mass transit line net development experiences, considering the research of resources sharing of guangzhou transit line net planning, this paper discusses the necessity, the main factors and principle of the route laying, makes an integrated analysis of the adaptable ranges of the ground line, the elevated line and the underground line, as well as their influences over land use, environment and engineering mat, which, as the authors hold, will provide the technique support for the route laying mode planning of the line net

    摘要結合廣州市城市交通網建設規劃的經驗,在廣州市城市交通網資源共享規劃研究的礎上,對路敷設方式規劃的必要性、主要內容、影響因素及確定原則進行了闡述,並對地面、高架、地下三種形式在適用范圍、對城市土地利用、對環境影響、工程造價等方面進行了綜合分析比較,為路敷設規劃提供技術支持。
  14. Based on the design theory and application foreground of the ladder track structure, this paper analyses the effect of the structure on track itself and the environment

    摘要介紹了梯子式結構的本理論、設計理念、應用前景,分析了應用這種結構對路、環境等的影響。
  15. 4 ) based on the theory analysis of the equal contact stress inner curve, the experiment research is discussed, and the project of experiment is also designed

    ( 4 )在理論分析等接觸應力礎上,對試驗研究進行了探討,並設計了相應的試驗方案。
  16. 3 ) based on the analysis result of equal contact stress curve and the theory of elasto - hydrodynamic lubrication, the expression of the oil film thickness between roller ( or ball ) and orbit are calculated. the simulation result proved that the thickness of oil film is enough for bearing and lubricating

    ( 3 )於等接觸應力曲的求解結果和彈性流體動力潤滑理論,求得滾動體和間的油膜厚度表達式,並通過模擬分析論證了馬達正常工作時這種油膜能滿足承載能力和潤滑的需要。
  17. In the higher velocity, especially in the critical velocity, the continuous model is invalidity. 2, in this paper, assume that the track and wheels are ideally smooth and no carriage or wheel - axle bending vibrations occur. invoke the basic hypothesis of the bernoulli - euler theory of beams : namely, that plane cross - sections initially perpendicular to the axis during bending

    2 、在對連續性模型的分析礎上,假設與車輪為理想光滑的、沒有車輛和輪軸激起的振動,引用bernoulli - euler梁理論的假設:即垂直於梁軸的橫截面在彎曲過程中仍然垂直於梁的中性軸。
  18. This paper is based on the construction of jiangbei airport station of the chongqing no. 3 light railway, the control demolition applied to shallow covered and large foundation pit excavation under urban complicated condition is introduced

    摘要以重慶輕三號江北機場站為例,介紹了城市復雜環境條件下淺埋隧、大坑開挖控制爆破施工方法。
  19. If we continue on our present course, we ' ll sever the monorail ' s supports

    如果我們繼續走現在的路我們會割斷單纜車的
  20. Therefore, in order to evaluate the environmental vibration along railway lines, it has very important practical value to analyze and calculate the dynamic response of soil under moving load

    因此,為了評價系統引起的振動對沿環境的影響,對移動荷載作用下地土動力響應的分析與計算具有十分重要的實際意義。
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