arc function 中文意思是什麼

arc function 解釋
弧函數
  • arc : A. R. C. = American Red Cross 美國紅十字會。n. 1. 弧;弓形,拱(洞)。2. 電弧,弧光。
  • function : n 1 功能,官能,機能,作用。2 〈常 pl 〉職務,職責。3 慶祝儀式;(盛大的)集會,宴會。4 【數學】...
  1. The paper is mainly based on geography, ecology, sight ecology, region location theory and system theory. by interpreting the mss remote sensing image of 1970s and the tm remote sensing image of 1980s and the end of 1990s in keerqin sandlot based on background database and expert information, we have achieved the three periods vector data of land desertification of the research area, then we have disposed the data property by using the powerful spatial analysis function of arc / info and achieved the information extraction and analysis supported by arcview and erdas imagine. thus the rule of temporal and spatial variation of land desertification in keerqin sandlot is researched and the blueprint and countermeasures of the prevention and treatment of land desertification in keerqin sandlot are put forward

    本研究主要以地理學、生態學、景觀生態學、區位論和系統論為主要理論支持,通過對科爾沁地區20世紀70年代的mss遙感影像、 20世紀80年代和90年代末tm遙感影像進行基於背景數據庫和專家知識的解譯,獲得科爾沁研究區土地沙漠化的三期矢量數據,利用arc / info軟體強大的空間分析功能對屬性進行處理,並在arcview 、 erdasimagine軟體的支持下進行信息提取與分析,研究了科爾沁沙地土地沙漠化時空變化的規律,提出了科爾沁沙地土地沙漠化防治的構想與對策。
  2. Wire clipping - ball and high voltage, slow wire sending function developed the arc - starting liability

    焊絲削球和高電壓、緩送絲功能,提高了引弧的可靠性。
  3. An arc stud welding controller with date acquisition function

    具有數據採集功能的電弧螺柱焊控制器
  4. Based on researching the function of every kind of eliminating arc loop, new concept was brought up in this paper, and the protective device for eliminating arc and overvoltage was researched and manufactured. when the arc light connecting the ground emerges, the chip synthesizing controller control the vacuum contacter which can be operated with dividing phase and make its fault phase earthed so that the arc light can be dissolved thoroughly

    本文在研究各種消弧線圈的基礎上,提出全新的概念,研製出了消弧及過電壓保護裝置,該裝置在出現弧光接地時,通過單片機綜合控制器控制一組可以分相操作的真空接觸器,使故障相接地,達到徹底消除弧光的目的。
  5. The strategy on repair and reinforcement on steel crane girder structures in service based on fatigue dynamic reliability is analyzed in the paper. considering the benefits of repair and the long - term economic affection after repair and reinforcement, using the fatigue dynamic reliability as constraint condition, thinking of that the sum of benefits of repair and reinforcement as object function, the optimization model is put forward. then it is used to an certain crane arc ends repair an reinforcement

    5 、基於疲勞動態可靠性,對在役鋼結構吊車梁的維修加固策略進行了探討,考慮維修加固效益和維修加固后的經濟影響,提出了以疲勞動態可靠性為約束,以維修加固總效益為目標函數的優化決策模式,並通過某鋼廠圓弧端吊車梁的維修加固實例驗證,可為工業建築吊車梁的設計,管理和維護提供依據。
  6. The function of the software use pc - computer to dispose the output signal which is produced by the device as following steps : ( 1 ) to input data by parallel interface ( 2 ) to record and form a file ( 3 ) to demonstrate results step by step ( 4 ) the results could be compiled ( 5 ) it can synthesis in the permitted error scope, substituted original dot for line or arc, finally we could get a graph that is described by some simply curve. ( 6 ) to convert these graph into a program, which used in the cutting process of numerical control. ( 7 ) the software also includes some protective methods

    而系統處理軟體的作用是:利用pc兼容機,將上述裝置的輸出信號( 1 )通過并行口輸入( 2 )記錄成文件( 3 )逐點顯示出來( 4 )可人工進行化簡,編輯(刪、改點)等( 5 )可在給定誤差范圍內進行人工擬合,用直線和圓弧取代原來的點,得到一個與原圖形的誤差在規定范圍內,又消除跟蹤過程中因受到各種干擾而造成的缺陷,由盡可能少而簡捷的數學曲線描述的圖形( 6 )把這些圖形轉化成用於編制數控線切割加工程序及autocad能夠識別的文件(主要指dxf格式) ( 7 )該軟體還有一定的加密措施。
  7. Jinlong stone arts factory was set up in 1993, covering an arer of 2, 000 square meters, which is a private enter prise engage in processing stone crafts. the factory has advanced stone processing machine in producing arc slabs, columu head, coumn base, ro man column, stone border, stone patterning with water cutting kinfe, fountain ball and st one carving. by using the multi - function column making machine and infrared stone border profiling machine, the factoey can produce high quality products with perfect skills, including column, aperture linking of stone border, angle, arc angle, polish limit etc

    金龍工藝廠創辦於1993年,廠房佔地面積2000多平方米,是一家從事石材工藝加工的企業,擁有加工圓弧板、柱頭、柱座、羅馬柱、石線、水刀藝術拼花、風水球、雕刻等先進的石材機械,採用多功能圓柱刨柱機,紅外線石線仿型機,以精細的石材加工工藝使圓柱、石線的拼逢、角度、圓弧度、光澤度等在加工質量有突破性飛躍。
  8. If the geometric hermite data is from a smooth function with the arc - length parametric, the cubic ph approximates the smooth function, the error in the approximation of a short segment of length h is found

    如果此三次ph曲線插值于以弧長為參數的某一函數曲線,則可以給出三次ph曲線逼近該一小段曲線的逼近誤差。
  9. Whereafter, based on the analysis on the flood influence for traffic lines, the research is centered on the following parts : firstly, the destroying modes, reasons and mechanism of flooded lines are discussed, and the frameworks and countermeasures of preventing and controlling hazards system are put forward ; secondly, the ways of region forecasting for the landslide are analyzed and the automation of landslide forecast for certain site through visual programming is realized. furthermore, the function of dynamic segmentation in arc view is made use of to realize the forecast result ' s visualization ; thirdly, the reasons and patterns of roadbed subsidence are discussed and the methods of forecasting subsidence based on the gm ( 1, 1 ) model are put forward. then the applications of the arcview software and its extended module on the study of roadbed subsidence are debates upon ; fourthly, an analysis on the sources of flood for traffic lines, which situate in the reservoir coverage area, is given

    接著,論文探討了山區交通線路災害的特點、分類、時間和空間分佈規律以及災害的防治原則和對策等;然後,以洪水災害對交通線路的毀壞為主線,重點研究和分析了以下幾個問題:第一,探討了洪水對交通線路的破壞方式,水毀原因以及水毀機理,並提出了交通線路水毀防禦系統框架和對策;第二,分析了雨季邊坡塌方災害的區段預測方法;通過可視化編程,編制了雨季邊坡塌方災害的工點預報程序,並結合arcview實現了預測結果的可視化;第三,對路基沉陷原因和模式進行了分析,並提出利用gm ( 1 , 1 )模型對路基沉陷區進行分析和預測,最後論述了arcview軟體及其擴展模塊在沉陷區研究分析中的應用;第四,對汛期庫區線路災害的原因進行了分析,並探討了利用數量化理論對路基防護工程抗洪能力進行預測的意義;第五,提出從風險的角度對交通線路的防災減災進行管理,對風險估計的相關問題進行了論述,並探討了交通線路水害危險區段的劃分問題。
  10. Paper aims at the theory problem of exact celerity machining design which is realized urgently in special shaped products, solves mathematics model of similar forming plastic stream, recurring to modern conformal mapping fruit, builds die mathematics model and optimized function equation of arc square product in precision extruding / drawing, establishes theory model for precision celerity shaped die of cad / cam integrative constitution

    摘要本文針對亟待實現的擠壓(拔制)異型材模具精密快速加工設計理論課題,藉助于近代共形映射理論研究成果,求解了異型材擠壓(拔制)模具相似成形塑性流動的數學模型,建立了圓角方型材精密擠壓(拔制)模具模腔數學模型及其優化函數方程,建立了為實現模腔精密快速的cad / cam一體化的理論模型。
  11. Self adjust function of electric arc, easy arc igniton, less spatters, perfect weld appearance

    電弧自調節能力強,引弧成功率高,焊接飛濺小,熔敷率高,焊縫成形美觀。
  12. The function of stone artistic splice complete through to established basic design or source material warehouse with the help of others graph process software. besides author come up with a new program or machine method in accordance with stagger in the thicknes and vertical length at the stone sticking execution, i. e ensure the accuracy in measurement to approach subsection by space spiral line, the data used directly by numerical control machine. finally machined the stone become a spiral line columned surface arc slab

    此外,針對旋轉樓梯扶手石材貼片施工時所出現的厚度和垂直方向易產生較大錯邊的問題,提出了一種新的建模方案和加工措施,即在保證測量精度的基礎上,分段以空間螺旋線逼近,經過計算機處理后的參數直接可供數控加工使用,最後把石材貼片加工成螺旋線型的柱面弧形扳。
  13. Solid core / drug sore welding wire conversion and arc - receiving function

    實芯/藥芯焊絲切換和收弧選擇功能。
  14. Conditions that a class of sequence has convergent subsequence arc discussed in the paper, this sequence is important in function approximation. the gained conclusions are useful in some relative areas

    摘要文章討論了在函數逼近論中有重要作用的一類序列存在收斂子列的條件,文中所得結論在相關問題的研究中有較重要的作用。
  15. This study choosed arc view gis by way of foundation platform and developed the function modules for region geophysics and geochemistry ( for example hydrological function and background analyst for region geochemistry and transformation for potency field and transformation of map projection and correlation analyst and grid data treating and inserter for kriging and trend and so on ) except using the basic functions of arc view gis ( e. g. neighbour analyst and spatial data treating and surface analyst and model constructor and so on )

    本論文選擇arcviewgis作為基礎平臺,除利用arcviewgis的基本功能(如鄰域分析、空間數據處理、表面分析、模型構造器等)外,開發了適合於區域地球物理地球化學綜合解釋的功能模塊,如水文功能、區域地球化學背景分析、位場變換、地圖投影變換、相關場分析、柵格數據處理、 kriging及trend插值器等。
  16. Nc machining requires " interpolation " algorithms that accurately and efficiently generate sequences of reference position, distributed according to a prescribed feedrate function, along the tool paths. this paper present a systematic derivation of the proper taylor series coefficients for variable feedrate interpolators. when the path is ph curves, detailed formulations for instances are presented where the feedrate v is specified as a constant, the function of the time t, the arc length s and the local curvature k

    對于nc加工要求插值演算法沿著刀具路徑準確、有效的生成參考點序列(根據預先指定的速率函數進行分佈)的實際工程需要,本文系統地推導了變速率插值運算元的泰勒系數,給出了當路徑為ph曲線,速率v為常數,及時間t 、弧長s 、曲率k的函數時具體的插值運算元。
  17. The principle of the predigestion in geometry modeling is omitting the function part and the non - load - carrying process structure, and to the big and transition arc, the curve is replaced by straight line using the thought of curve and free - surface segmentation. the physical characteristic of the digital model reflect on remaining the main mechanical characteristic of the objects. the shell element model is used in strength analysis, stiffness analysis and dynamic analysis

    文中幾何建模的簡化原則是,略去功能件和非承載的工藝結構,對于大圓弧和過渡圓弧,以曲面分塊和曲線分段的思想進行適當的以直代曲;數模的物理特性反映在最大限度地保留對象的主要力學特性;在強度、剛度和動態分析中採用殼元模型,輕量化設計中採用梁元模型;材料特性根據所用材料定義其主要性能參數。
  18. Accordring to basic concept and assumes essentially on the basic of sweden method of slices, be living below the maximum equilibrium state, the function expression about stability safety homogeneous slop is deduced, and the slope surface is consist of two lines and an arc, afterwards according to analysis theory of minimal value ruling on the basic of the maximum, genetic algorithm is applied to slove the dangerousest slide situation and radius and corresponding safely factor

    根據瑞典圓弧法的基本概念和基本假定,在極限平衡狀態下,推導了兩直線段均質斜坡穩定性安全系數函數表達式,然後根據極限分析理論的極小值原理,利用遺傳演算法,求出了邊坡穩定性安全系數極小值,並得到最危險滑動面的滑弧半徑和滑弧中心坐標。
  19. General principles for activities of nervous ; synapse and synaptic transmission ; the basic process of classical synaptic transmission ; postsynaptic potential : excitatory postsynaptic potential and inhibitory postsynaptic potential ; the conception of transmitter and receptor : mostly transmitter and receptor system ; reflex and reflex arc ; the characters of central excitatory transmission, central inhibition ; the motor unit of skeleton muscle ; stretch reflex ; the function of autonomic nervous system and their chemistry transmission

    神經元活動的一般規律;突觸與突觸傳遞;經典突觸傳遞的基本過程;突觸后電位:興奮性突觸后電位,抑制性突觸后電位;遞質和受體的概念:主要的遞質和受體系統;反射與反射弧;中樞興奮的傳播特徵,中樞抑制;骨骼肌的運動單位;牽張反射;自主神經系統的功能及其化學傳遞。
  20. Vibration - resisting electricity contact pressure meter is used for occasion by environment quake vibration excle in pulsaling lash by medium - resistant and suddenly unload ; usually it is make use of form a complete set by relevant eletric device ( such as relay and contact appliance and so on ). so realized attain auto - control post a letter ( give an alarm ) for pressure system by survey. compare with ordinary for a special model electricity contact pressure meter, zhe indicator ' s function by survey pressure more stabilize, more accurate, and powerful of resist eletric arc, and it is use for even more long life

    耐振電接點壓力表,適用於環境劇烈振動場合,可耐介質的高強脈動沖擊及突然卸荷;通常該儀表經與相應的電氣器件(如繼電器及接觸器等)配套使用,即可對被測(控)壓力系統實現自動控制發信(報警)的目的,與普通專用型電接點壓力表相比,指針測壓性能更穩、準,且抗電弧強大,使用壽命更長。
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