方向導軌 的英文怎麼說
中文拼音 [fāngxiàngdǎoguǐ]
方向導軌
英文
traversing guide-
At the same time, the construction of urban railway can promote the increment and exploitation of land, and induce the rationalization of city arrangement. however, constructing urban railway is costliness, as for urban railway, costing 700 - 900 million yuan / km, while, 300 - 500 million yuan / km is cost in constructing light track
軌道交通運能大，速度快、舒適、準點、對環境污染小，軌道交通的建設能夠帶動沿線土地開發和增值，引導城市布局朝合理化方向發展。但是，建造城市快速軌道交通造價高昂，地鐵每公里造價高達7 9億元，輕軌造價也達到了每公里3 5億元。We propose a novel controllable atomic beam - spiller based on the uccc and discuss the splitting mechanism of the guided atomic beam in the beam splitter from two aspects of the magnetic - field distribution and the trace of the guiding centers. the splitting ratio of the beam splitter can be adjusted by adding a homogeneous bias magnetic field along the y - direction, and the relationship between the splitting ratio and the additional bias field is analyzed
本文提出了一種採用在y方向上加一偏置磁場來實現分束比可控的新穎原子分束器，並從磁場分佈和導引中心軌跡兩個方面，詳細分析和討論了基於u -型載流導體所構建的原子分束器的分束機制。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
本文系統地研究了基於「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軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線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線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基礎上，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。Established the system of coordinates of roll testing, getting the parameters of equation of tooth face by solving the non - linear equations set ; according to the differential geometry and meshing principle, deduce the curvature parameters of tooth face and tooth profile, and get the parameters of instantaneous contact ellipse. emulate the contact trace and contact area of the working tooth face, and drawing the instantaneous drive ratio error curve
建立了克林貝格擺線齒錐齒輪嚙合分析的對滾模型，通過對非線性方程組的迭代求解，得到齒面方程的各個參數;由微分幾何和切齒嚙合原理推導了齒面上齒廓和齒線方向的曲率參數，得到了瞬時接觸橢圓的參數。根據設計參數和機床調整參數繪制了工作齒面的接觸軌跡和接觸區圖形，並求得了瞬時傳動比的誤差曲線。In order to geosteering, log - geology model of target formation should be built according to logging data and the interpreting result of wells nearby. geosteering parameters model is created to build simulative curves. compared these curves with logging curves, the position and drilling direction of the bit can be found combined with the concrete geological situation
要實現地質導向，首先要根據鄰井的測井資料及其解釋結果建立目標層測井地質模式，然後通過建立地質導向參數的預測模型構造相應的模擬曲線，將模擬曲線與實測曲線進行對比，結合具體地質情況，確定鉆頭在目標層中的位置及其鉆進方向，及時調整井眼軌跡，使其始終保持在目標層中物性最好的部位。This study made a conclusion ? amely in order to realize following the geological target while drilling, on the basis of making a better geological and drilling design for horizontal well, we must make full use of mwd, lwd and integrate logging to carry out lithfacy identifying in real time, the lwd interpretation and formation evaluation, to set up geological model of target formation, to select geosteering marked formation and compare simulative curves with lwd curves f to fix on the drilling direction of bit upper and declination, the position in target oil - gas layer, to revise borehole track in real time, to make it extend in reservoir better interval as possible
研究認為，在做好水平井地質設計和鉆井設計的基礎上，要實現隨鉆跟蹤地質目標鉆井，必須充分利用隨鉆測量、隨鉆測井和錄井等資料，從實時巖性識別、隨鉆測井解釋和地層評價、目標層地質模型建立、導向標志層的選取及模擬曲線對比等方面入手，確定鉆頭上下傾鉆進方向及在目標層中的位置，以實時調整井眼軌跡，使其盡可能在儲層物性較好的部位延伸。The research on autonomous navigation and orbital keeping technology of geosynchronous satellites : selecting position vector in the inertia space and longitude, latitude, radial errors in the hill equation as state variables, the precision of orbit determination caused by track dynamic model error, sampling period, and sensor measurement and install error is analyzed
同步衛星自主導航與軌道保持技術研究：分別選取慣性空間位置矢量和採用hill方程表示的經、緯、向徑誤差作為狀態量，分析軌道動力學模型誤差、采樣周期以及敏感器測量、安裝等誤差對定軌精度的影響。First of all, with the advancing of national sustainable development strategy and the rising of green economic wave, many enterprises go on the path of green development, so it is quite necessary to have scientific theories and methods of enterprise green development strategy for direction
首先，隨著國家可持續發展戰略的提出和綠色經濟浪潮的興起，許多企業紛紛走向綠色發展的軌道上來，因此亟需科學的企業綠色發展理論和方法的指導。The results obtained from the simulation example suggest a good effect and significance of using gps simulation data for demonstrating the feasibility and validity of an od design or an algorithm of certain problem. 4 the ill - conditioned problem existing in relative kinematic od using gps carrier - phase data is discussed and then some preliminary efficient approaches for solving this problem are given out there are several reasons that cause the ill - condition pro
（四）探討了星載gps相位相對定軌中的病態性問題，並嘗試給出了較有效的解決方案地面基準站、低軌衛星和gps衛星之間的幾何形狀分佈不佳，差分技術的應用使得模糊度之間及模糊度和三維坐標向量改正之間產生較強的相關性，往往都會導致星載gps定軌中的法矩陣的病態性。In the transition from planned economy to market economy system, our country has taken a reforming way from top to bottom in which the government occupied the leading position. the government ' s excessive interference, " power - money deal ", imperfect market system and implementing the legal norm loosely, resulted in a large amount of " rent seeking " behaviors breeding and spreading. these hinder ed the process of marketization, degenerated the social ethos, consume valuable social resources
在我國從計劃向市場的體制轉軌過程中，國家採取的是政府主導的自上而下漸近式的改革方式，政府干預過深、 「權錢交易」 、市場制度不完善和法律規范執行不力，導致尋租行為大量的滋生和蔓延，阻礙了市場化改革進程，惡化了社會風氣，消耗了寶貴的社會資源。Through establishing a 3 - force model and decomposing primary factors, the paper elaborates on the key factors determining the formulation and evolvement of the itt mechanism of chain ' s lics in such areas as institution, technology, industries and opening to global industrial chain during the transition period
通過建構「 3力」模型和主因素分解，解析了轉型背景下影響我國地方產業集群內產業技術軌道生成與衍化動力的制度、技術、產業特徵、外向關聯度等方面的關鍵因素，指明主企業領導型企業網路對現階段我國地方產業集群內產業技術軌道生成與衍化的重要推動作用。Magnetic marker buried in the road can be used as navigation signals, this signals are collected by build - in - vehicle sensor and are sent to the build - in - vehicle computer, the computer processed and sent instruction or command, automatic running of driverless vehicles can be realized by the steering wheel servo mechanism which connects with step motor
通過埋設在道路上的磁軌釘作為車輛控制的誘導信號，由車載傳感器進行信號的採集，把採集到的數據信息傳送到車載計算機中，通過車載計算機的處理，發出執行指令，利用步進電機連接的方向盤伺服機構以實現車輛在無人駕駛的情況下保持車道的正常運行。An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process
飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力The simple affine transformation is used to describe the motion of feature points, and an pdaf is employed to obtain the estimate of the state vector ; a matching method based on gabor wavelet transformation is employed to find the corresponding point ; an ekf is employed to process the temporal information ; a scheme is designed to include new feature points
點的軌跡模型採用仿射變換描述，引入pdaf演算法進行狀態估計；利用基於gabor變換特徵向量的匹配演算法進行對應點的辨識；推導出ekf濾波器方程組，對時態信息進行濾波；具有新特徵點的選取、跟蹤能力。There are many factors that may affect the aircraft s flown track - the wind speed and direction relative to the aircraft s intended flight path, the performance characteristics of the aircraft, tolerances in navigational aids and different piloting skills and techniques etc. in practice, the flown tracks may deviate either side of the nominal centre line shown in the map in
飛行中的飛機不能如火車般緊貼路軌行走。飛機在飛行中會受多方因素影響：這包括相對于飛行航道的風速及風向、飛機的操作性能、導航儀器的偏差、機師駕駛技巧等。基於以上原因，實際的飛行航道可能有別于Based on both the actual problems existing in the public signs and markings of shanghai rail transit, and the passengers ' actual demands for placename translations in terms of traffic guidance, this paper emphatically analizes and discusses the applicability of the standards, norms and regulations relevant to the translation of placenames ; the reasonable placename designations that can be used to additionally designate the placenames in the original language ; the classification of translation methods of placenames ; the grammatical structures of place - names ; the resolution of typical problems in placename translation, etc
摘要從上海城市軌道交通公示語中地名翻譯所存在的實際問題以及乘客對交通導向等實際需求出發，分析、探討了現有地名翻譯的相關標準、規范和條例的適用性，以及原文地名合理的補充標識、地名翻譯方法的分類、中文地名的語法結構、地名翻譯典型案例的解決方案等問題。Applying the key technique of concurrent engineering - design for function ( dff ), design for assembly ( dfa ) and design for manufacture ( dfm ) of the method of design for " x ", the virtual design of the torque converter is accomplished in catia v5. then the model constitution and the simulation of virtual process of the torque converter is done in catia v5, including the model constitution and the simulation of 5 - aixe nc virtual process of the vane, the model constitution ( material : pvc ) of the idler pulley rapid prototyping ( rp ) and the virtual assembly and the motion simulation of the torque converter, etc. 3 - d data exchange between various cad systems is realized by using step standard. the lever of classing the character model of the torque converter is given
應用并行工程的關鍵技術之一? ?面向產品全生命周期的設計dfx中面向功能的設計dff 、面向裝配的設計dfa和面向製造的設計dfm的方法，在catiav5中完成液力變矩器虛擬設計；在catiav5中對液力變矩器進行虛擬加工建模和模擬，包括液力變矩器導輪葉片五軸數控加工刀軌建模與模擬、導輪快速成型rp建模（ pvc材料） 、液力變矩器虛擬裝配和運動模擬等；採用step標準實現多cad系統之間三維數據交換，提出液力變矩器特徵模型的分級標準並對三維模型數據進行分級管理，制定相應的權限等級以規范合作廠家的產品數據管理層次。Since the profit medical institution is a newborn in china, it has become an urgent task for us to guide it along a legal track. and to make a complete constituent instrument is one of the important aspects of the legislation of the profit medical institution
因此，如何引導營利性醫療機構走向法制化的軌道已成為我國當前一項十分緊迫的任務，而其中一個重要的方面則是制定較為完備的營利性醫療機構組織法。On grasping the inner logic and combining the soul of management thoughts with the latest developments of the practice, the author depicts two routes of the return as from west to china and gradually humanism and tries to unify them into the scope of " science converse to humanism ". then, in managerial and economical angels, the author argues that the driving force of the return is individual ' s desire to develop fully and freely. moreover, the author attempts to provide the cutting point and theoretical guide to build up the chinese own management system, which is originated from the ancient thoughts and adapts to the world trend
本文試圖彌補這一缺陷，在對管理思想歷程作內在邏輯的流變而完整的把握、把管理思想的精髓和與現實經濟生活的最新發展聯系起來的基礎上，描繪出管理思想在空間維度上由中方向西方、再從西方向中方、在時間維度上逐步人性化的回歸軌跡，並把這兩個維度的回歸統一在「科學走向人文」的范疇內，進一步從管理學和經濟學的角度來論證人的全面自在發展的需要是管理思想回歸的內在邏輯和動力源泉，並嘗試性地為建立既源於古代管理思想又合符潮流的具有東方管理特色的中國式管理理論體系提供切入點和整體理論指導。By analyzing the reasons for prohibiting stimulants as well as other factors that do harms to the health of the human body and the sustainable development of sports, the authors pointed out that the nature of competitive sports is game playing, and that over commercial development and excessive political interference are the main causes for competitive sports to deviate from the track of game playing, and that for future development competitive sports should return to the nature of game playing
摘要通過對禁用興奮劑的原因及其它危害人的身體健康和妨礙體育發展諸因素的分析，指出競技體育的本原是游戲，過度商業化開發和過多的政治性干擾是導致競技體育偏離游戲軌道的主要原因，競技體育的未來發展方向應回歸游戲本原。分享友人