point and direction 中文意思是什麼
point and direction
解釋
點和方向-
The nine elements of the matrix are products of cosines of angles between the direction of a streamline at a point and the coordinate axis.
這矩陣的9個元素系一點的流線方向和座標軸之間夾角餘弦的乘積。 -
In local vector match method, we add the line numbers and the dispersion of direction angle between the center point and near minutiae point. we also add the direction angle of the center point. these additions enhance veracity of the minutiae feature matching
在局部向量特徵匹配法中加入了中心點與鄰近特徵點的紋線數，方向角差，中心點的方向角等特徵信息，提高了特徵匹配的準確性。 -
By means of bending tests of three - point and four - point, complex fracture experiments were made for cast iron material with crack. the stress intensity factor and breaking direction angle of cast iron material were measured and compared with theoretical values. based on the research some useful conclusions are given for engineering design and application
通過3點彎曲和4點彎曲實驗方法，對含有裂紋的鑄鐵材料進行復合型斷裂實驗研究，測試鑄鐵材料的應力強度因子、斷裂方向角，將實驗結果與理論值進行分析、比較，找出兩者之間的異同點，得到一些對工程設計及應用具有實際意義的結論。 -
At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel
首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。 -
Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義 -
Based on the different direction of view and water and relation of water and land, the author divided lake landscapes into vertical single - water landscape, parallel poly - water landscape, vertical poly - water landscape, parallel single - water landscape and bird ' s - eye view landscape. addition to, the author discussed the effect of distance between a given vantage point and opposite shore to plant landscape ' s visual character, then give the key point of plant designing in different lake landscape mode and researched the effect to visual landscape caused by all kinds of plant design method from the plant on land and water
確定了由於視線與水體的方向以及水陸關系的不同而形成的單水體垂直景觀、多水體垂直景觀、單水體平行景觀、多水體平行景觀和鳥瞰景觀等5種景觀模式，並在此基礎上進一步論述了視點與水體對岸的景觀間距對于植物景觀觀視特點的影響，提出了不同湖泊景觀模式中植物配置的重點。 -
It study carefully the distortion of the remote sensing imagery, the rectification of the radiant quantity, the rs image strengthen and the color fusion. based on these achievements above, we do experiment on the differential rectification, the rs image fusion, the object determining and the exchange for the different format data, propose the plan and flow chart of the terrain map rectification by the rs imagery. we demonstrate the method for the target location and the direction outside by the rs imagery and how to select the reference point and read the information of the rs imagery
本文闡述了利用航天遙感影像進行1 : 25萬地形圖數據庫更新的必要性和可行性，在對spot和landsat遙感影像特性進行分析的基礎上，對航天遙感影像的系統變形、輻射量校正和影像增強與彩色融合等內容進行了認真研究，並在此基礎上對航天遙感影像數字微分糾正、影像融合、地物判讀、數據庫數據格式轉換、基於遙感影像的地形圖修測等方法進行了具體試驗，提出了利用遙感影像進行地形圖修測的具體方法和作業流程。 -
Make sure that the ds is within 30 feet of the wireless access point and facing in its general direction
請保證您的ds系統在無線設備的30英尺信號范圍以內，並確保您的無線接收方向正確！ -
For the users " convenience, users are allowed to install the encoder anyway. in other words, the range used actually of the encoder is allowed to span its zero point, and the ascending direction of the encoder ' s output and that of the floodgate ' s opening can be identical or not
為了方便用戶的使用，允許用戶將閘位計（即旋轉編碼器）安裝在任意位置，包括閘位計實際使用范圍跨越閘位計零點的情況，閘位計輸出增大的方向與閘門開度增大的方向可以相同，也可以不同。 -
Abstract : a numerical model which can evaluate the movement of each individual occupant is developed, the model which divides a building setting into planar grids can described the position of each occupant at any point of time. the movement speed and direction of each occupant are dominated by the characteristic in the grids such as density, location etc. the approach in calculating movement pattern of each occupant and the exact evacuation time have been demonstrated in this paper, the result of the simulation is more accurate than that of the other software
文摘:將建築物在平面上劃分成能反映人員具體位置的幾何坐標網格，根據不同人員在不同網格內的移動特性確定其移動速度，建立了描述人員疏散過程的數學模型，用場模擬的方法可以準確得到建築物疏散時間和人員疏散軌跡，其模擬結果與國外同類軟體對比具有較好的精度。 -
From the specified reference point and moving in the specified direction
通過從指定參考點沿指定方向移動來檢索下一個 -
Based on such a fact, it has been a start point and a striving direction for building up new administrative method to discuss the living space and future development direction of beneficial administrative actions. the first section mainly analyses how to define the concept “ beneficial administrative actions ”, and meanwhile explores its theoretical existing space and practical demands
本文試圖梳理授益行政行為作為現代行政方式存在的合理性和發展前景，以我國授益行政行為中的行政許可、行政給付和行政獎勵在觀念和制度層面存在的缺失作為剖面，檢討我國授益行政行為應當向何處去的制度構建。 -
The article analyzes the traditional ways for modeling the turning point and the gradient, then puts forwards the better ways for it by using model to set down the direction in turning point and measuring in the midline, thus enhancing the efficiency
摘要分析了轉點和坡度放樣的傳統方法，提出了採用模型放樣折線洞中線、在洞中線掛線上量測長度進行坡度放樣的簡易方法，提高了工作的效率。 -
In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.
在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。 -
Such methods are generally decreasing method, such as, feasible direction methods, constrained variable metric methods, etc. another class is sub - problems method, which approximates the optimal solution by solving a series of simple sub - problems, such as penalty function methods, trust region methods, and successive quadratic programming sub - problems, etc. the same property of two classes of methods is that they determine whether the next iterative point is " good " or " bad " by comparing the objective function value or merit function value at the current point and next iterative point
另一類叫做子問題演算法，這種演算法是通過一系列簡單子問題的解來逼近原問題的最優解，如罰函數法、信賴域演算法、逐步二次規劃演算法等。這兩類演算法的一個共同特點是，通過比較當前點和下一個迭代點的目標函數值或評價函數值來確定迭代點的「優」或「劣」 ，若迭代點比當前點「優」則該迭代點可以被接受，否則須繼續搜索或調整子問題。 -
As they whizzed around a a long - time believer in journalist jaime maussan told a news conference on may 11 the objects were real and seemed " intelligent " after they at one point changed direction and surrounded the plane chasing them
記者雅伊梅莫薩納長期以來就一直相信飛碟的存在，他在5月12日的記者招待會上說，那些不明飛行物確實是真的，而且似乎很「智能化」 ，這些不明飛行物在某一點上改變方位后包圍了跟蹤它們的偵察機。 -
The manager motive power and direction question, namely the manager encouraging - binding question, is the popular question in modern enterprises. it is the hot research point to modern economy science and management science
企業經營者的動力和方向問題，即企業經營者激勵約束問題，是市場經濟條件下，現代企業普遍存在的問題，已成為現代經濟學和管理學研究的熱點。 -
A figure has a direction that describes how line and curve segments are traced between the starting point and the ending point
圖形具有方向，方向描述在起始點和終結點之間繪制直線段和曲線段的方式。 -
The text in the base of unscrambling concept of private economy particularly, adopting the developing datum about yangtze river delta from 1978 to 2004, the penman analyses private economy ’ s developing course of yangtze river delta, demonstrats its new developing characteristics and direction. however, although it ’ s always in the former rank in the national economy, still exists many problems. at present, financing is one of all - important problems, industrial organization is new way of its competition and amalgamation, and swelling independent technology innovation is a basic point of technology development. the penman believes that analysing and discussing this three problems at present is meanful. this text uses produce - funcion to analysing puzzledom of financing, uses the theory of be independent of manufacturer ’ s scale to analysing the internal forming mechanism, uses cost - benefit model to analyzing the mechanism of innovative impetus, finally, elicits improving countermeasure of its practical situation to putting forward powerful opinion
融資歷來是長三角民營經濟發展的首要制約因素之一;產業集群是其競爭與融合的新走向;技術創新則是其發展的動力源。因此，在現階段對這三個問題的分析討論更具有時代性與必要性。本文運用「柯布? ?道格拉斯」生產函數解析長三角民營經濟的融資困境，分析其融資難成因;運用廠商規模無關論對長三角民營經濟產業集群的內在形成機制進行分析;從長三角民營經濟技術創新的現實模式出發，分析其制約因素，力圖給出幾點可行的對策建議，促進長三角民營經濟在新階段的可持續發展。 -
Point out guarantee measures of executing agricultural product standardization by the situation of standards of major agricultural products in jilin province, that is, to enhance the formation and direction of standardization, found the agricultural product standardization network and administration system, establish the propagation and popularization channels of the agricultural product standardization, and organize the agricultural industrialization management based on standards, adopt the high - start, high - standard, high - value standardization rules, supervise intensively the enforcement of the agricultural product standards, quicken the construction of the agricultural product quality standard organizations
本文還結合吉林省主要農產品標準化現狀，給出了吉林省農產品標準化的保證措施。即加強對標準化工作的組織領導；建立農產品標準化工作網路和管理體系：設立農產品標準化的宣傳普及渠道；運用標準化組織農業產業化經營；實行高起點、高標準、高效益的采標原則；加強農產品標準實施的監督；加快農產品質量標準隊伍的建設；建立資金保障體系。
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