spatial angle 中文意思是什麼
spatial angle
解釋
立體角-
Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。 -
The major drawback of the method is the low spatial resolution of ccd arrays, because of which, the angle between the reference and the object waves must be limited to a few degrees
目前， ccd低的解析度是數字重現技術的最大的制約因素。 ccd低的解析度限制了物光和參考光之間地夾角，使得實驗精度要求很高。 -
Time complexity analysis of two non - angle algorithms to determine the radial spatial adjacent relationship
確定射線空間相鄰關系的兩個非角度演算法的時間復雜度分析 -
Form feature of farmland ecosystem and ecological security angle of the region set out, analyzing affection of farmland landscape pattern to ecological environment, bring to light that spatial heterogeneity and fragmented of farmland landscape pattern are important influence factor to land ecological environment security in the farming stock - raising in this paper
從區域農田生態系統特點和地區土地生態安全形度出發，通過對市域農田景觀空間格局特徵及其對土地生態環境安全影響的分析，顯示出農田景觀格局的空間差異性與破碎度高是農牧交錯地區土地生態環境安全的重要影響因素。 -
For parameter a, there is a close relationship exist between a ( 9, sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture, we get the final expression of the inversion model : where mv ( t1 ), mv ( t2 ) is volumetric soil moisture content in two different temp, c, d is soil type related parameters, and v ( t1 ), s ( t2 ) is coresponding bare soil radar backscattering coefficients. inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40, the soil moisture change value can be derived with an acceptable accuracy using the above model. the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover, as well as the soil hydraulic characteristics
利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0 -
The motion compensation of radar target and an analysis of influence of component imperfection in the realization of the method are presented. to evaluate the performance of the proposed method. monte carlo simulation has been conducted to estimate the root mean square error of the angle estimates and the spatial resolution snr threshold in the cases of both non - fluctuating targets and fluctuating targets
在此基礎上，提出了針對相位權重角度超分辨法的雷達目標的運動補償方法，分析了雷達系統各部件的不理想性對超分辨性能的影響，用montecarlo方法對無抖動目標和有抖動目標在不同信噪比下的方位估計誤差和方位超分辨的信噪比門限進行了模擬計算，並將結果同波束空間music方法及cramerrao限進行了比較。 -
Several models of bonded dissimilar materials with interface edges are calculated. displacement, electrical potential, singular stress fields and singular electrical displacement fields near a singular point are deduced by the eigenfuntion expansion method based on the general solution of the spatial axisymmetric problem of the transversely isotropic piezoelectric media. a generally axisymmetric interface edge of bimaterials with arbitrary interface angle and joining angle is analyzed theoretically by using this method
在此基礎上，對具有任意界面角和結合角的橫觀各向同性雙壓電材料空間軸對稱界面端一般模型的軸對稱變形問題進行了理論分析，給出了該模型界面端的奇異性特徵方程以及界面端附近的位移場、電勢、奇異應力場和奇異電位移場。 -
From the aspect of geometry, structure design, manufacture and examine, this paper generally summarizes the gcm ' s study progress in detail, discusses its kinetic rule and the determination of its primary structure parameter, and educes its surface equation and pressure angle equation based on the homogeneous matrix transformation and the conjugate engagement theory of spatial surface. on the basis of geometry study of gcm, the paper makes a comprehensive analysis to the interference phenomenon that will possible exist in the assemble course of two different structure of gcm with the help of matlab software
本文從運動幾何學、結構設計、動力學、製造和檢測等方面對國內外弧面凸輪機構的研究進展進行了全面綜述，詳細論述了高速凸輪機構的運動規律和弧面凸輪機構基本尺寸的確定，基於空間曲面共軛嚙合原理，通過齊次變換推導了外弧面凸輪的曲面方程和壓力角方程，並提出了對應的廓面修形演算法；提出了內弧面凸輪機構的構想，推導了內弧面凸輪的曲面方程和壓力角方程。 -
The principal initial hole factors influencing primary section trajectory, such as sidetracking position ( formation factors ), primary deviating angle and primary azimuth of the sidetracking position are analysed by spatial plane - tilted method
文章運用空間斜平面法分析了對側?水平井起始段有重要影響的主要初始井眼條件，包括側?點（地層因素） 、側?點初始井斜角、側?點初始方位角等對起始段軌跡的影響。 -
By means of establishing the mathematical model and simulative model for double wishbone typed independent suspension frame of certain light - duty lorry and using the adams software to simulate the variation law of front restraint angle of wheel at different positions of splitting points during the moving course of lorry, and verified the correctness and reliability of the simulated result by applying the spatial analytic geometric relation formulae
摘要通過建立某輕型卡車雙橫臂式獨立懸架的數學模型和模擬模型，利用adams軟體模擬汽車運動過程中不同斷開點位置車輪前束角的變化規律，並用空間解析幾何關系式驗證了模擬結果的正確性與可靠性。 -
In chapter 2, basic concepts, the author firstly gives a definition and discrimination on the connotation, characteristic and spatial structure of the key concept - " tourism region ". secondly, he set forth the connotation, category and factors that affect spatial competition among tourism regions in a systematic way. and thirdly, from the angle of tourism balance between supply and demand, the author divides spatial competition among tourism regions into two types - " spatial deformation " and " spatial shield ", and proposes structural pattern of factors that affect spatial competition among tourism regions
第二章基本概念部分，對核心概念旅遊區域的內涵、特徵、空間結構等進行了界定；對旅遊區域空間競爭的內涵、類型及其影響因素進行了系統闡述，並從旅遊供需平衡的角度，把旅遊區域的空間競爭分為「空間變形」與「空間屏蔽」兩種類型，提出了旅遊區域空間競爭的影響因素結構圖式。 -
Compared with similar studies at hand, this thesis has made some achievements in the following aspects : i. it establishes such concepts as " tourism region " and " spatial competition among tourism regions " from the angle of region
比照已有的相關研究，本文在如下幾個方面取得了一些進展。 l 、從區域角度，建立了旅遊區域、旅遊區域空間競爭的概念。 -
Typical computer generated holography ( cgh ) and hologram synthesis that simulate typically optical holography need to compute a huge 2 - d holographic fringe, or to lose some 3 - d information and resolution to reduce data. the first real - time display of holographic images was reported in 1990 by the mit spatial imaging group. but this is still an open problem because view angle of holographic images, volume and speed of transmit are limited
傳統的研究集中在計算機生成全息圖（ computer - generatedholography ，簡稱cgh ）和全息圖綜合的方法上，採用模擬光全息的物理方法，從而導致數據量龐大，無法在現有硬體上完成實時處理，或者靠損失部分三維信息和解析度以減少數據量，但失去了真三維顯示的效果。 -
Based on the retrospect and review of existent literature, spatial monopolization and rival strategy are accepted but the angle discussing the effect that product differentiation works on cooperation will be changed from producer. by re - constructing function of consumer utility and introducing in consumer preference, the degree of product differentiation may be denoted by the degree of consumer preference. the influence that product differentiation works on critical discount factor d can be obtained by introducing in one - shot price game and repeated game, from which we can learn the influence that product differentiation works on cooperation
圍繞bertrand悖論的所展開的爭論，為進一步展開對這一問題的分析提供了豐富的工具和背景知識，在對已有的理論文獻加以回顧引述的基礎上，保留原有的空間壟斷概念和競爭策略的同時，改變單純從生產者角度來論述產品差異度對企業合作的影響，重新構造消費者效用函數，引入消費者偏好，以消費者的偏好的大小來表示產品之間的差異度，通過單時期和無限期博弈模型來論證產品差異度（消費者偏好程度之比）對臨界折現因子的影響，進而論證其對企業間進行合作所產生影響；效用函數的引入使得價格和運輸成本不再是決定消費者購買的唯一因素，消費者對產品的選擇不完全取決于消費者的位置，這會導致企業間定價和市場份額的非對稱性變化。 -
By comparing the ideal joint and clearance joint for the deployment process of a spatial deployable truss structure in multibody dynamics, it is found that the existence of the joint clearance makes the movement discontinuous, and also found the attitude angle degree and angle velocity of the spacecraft are affected in the deployment for the joint clearance
通過對有無鉸接間隙的剛性空間展開桁架模型的計算結果比較，說明鉸接間隙的存在對于桁架展開過程的影響及這一過程對衛星的姿態角速度的影響，同時比較了有無鉸接間隙時鉸接處在展開過程中接觸力的變化。 -
The emphasis is put on the spatial angle identification of the unsolved jamming signal in the time and frequency field. two methods of the spatial angle separation is given : the clustering analysis and the power centroid track, and the advantages and the shortcomings of these methods are discussed with the theoretical analysis and the emulational result
本文重點研究了對于多個時域、頻域均不可分辨的干擾信號如何從空間角度上進行分辨，提出了兩種角度分辨的方法，聚類分析法和能量重心跟蹤法，並結合理論分析和模擬的結果，討論了這兩種方法的優缺點。 -
Then, the relationship between urban spatial structure and urban green space system is parsed from different angle such as geography, ecology, urban planning and economy. putting it in the knowledge economy era background, the paper thinks the virtual information space could not replace the urban green space, and the position of later will be strengthened
隨后又對兩者的相互關系從地理學、生態學、城市規劃學和經濟學不同的視角進行解析，並且將其放置於現今時代背景：知識經濟時代中加以審視，認為虛擬資訊空間無法取代城市綠色空間，因此其地位在新時代不會削弱只會加強。 -
Firstly, the causes of principle error about the spatial moment - based edge operator are explored and the principle error function on random angle of edge is proposed, some important properties about the error function are also discussed
然而空間矩運算元採用理想二級邊緣模型的邊緣公式來計算更接近於實際的三級邊緣，由此帶來了所謂的原理誤差，而以往對于原理誤差的研究也只限於垂直邊緣。 -
The thesis attempts to analyze the regional features of the spatial arrangement in ningxia ' s urban system from the angle of natural ecology and put forward the appropriate pattern of urban system ' s spatial development
本文試圖從自然生態的角度探討寧夏城鎮體系空間布局的地域特性，從而提出與之相適應的城鎮體系空間發展模式。 -
Based upon practical engineering applications, the variant separating - variable algorithms of hyper - surface fitting for arbitrary multivariate scattered data are presented by separating positional variables in a spatial domain from certain physical variables such as time, mach number, angle of attack and so on, followed by their comparison. when compared with existing scatted data interpolation algorithms, the new ones are more effective. a sufficient condition to exchangeable order of separation is obtained and order of continuity on the hyper - surfaces above is discussed
三、以實際工程應用為背景，將具有某種物理意義的量（如時間、 ma數、迎角等）與空間位置變量分開處理，給出任意散亂數據超曲面擬合變量分離的各種演算法，對它們進行了演算法的分析比較，獲得了分離次序可交換性的充分條件，給出了變量分離法構造的超曲面的光滑階。
分享友人