arc end 中文意思是什麼

arc end 解釋
電弧端
  • 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。
  • end : n 1 端，尖，末端，終點。2 邊緣；極點，極限。3 結局，結果。4 目的。5 最後，死。6 【紡織；印染】經...
  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. Series of high pressure thermocouples thermalresistances and thermowells, the thermocouple take the form of spring - loaded, of which protective tube and flange are forged of special alloy, as well the thermowell are formed with bar stock drilled. more further, theconnecting between thermowell and flange can be compressed with tapered thread and the groove at the lower end of flange can be welded with argon arc. these thermocouples are usually used in high equipments of hydrogen cracking device, cracker and vaporizer etc for pressure - resistant in over 30 mpa, operating temperature from 0 up to 800

    系列高壓熱電偶阻及套管，熱電偶採用彈簧壓著式，保護套管和法蘭選用特殊合金材料鍛造，套管採用棒料整體鉆孔加工而成，與法蘭連接處以錐管螺紋配合併與法蘭下端渠槽處用氬弧焊接，耐壓30mpa ，使用溫度0800 ，可長期使用在加氫裂化裝置裂解裝置，氣化爐等高壓設備中。
  3. In the end of this paper the problems and the train of thought for the system innovation of frcf arc stated when the farm is actualised

    並著重論述了實施森林資源資產化管理后育林基金制度存在的問題及改革思路。
  4. Standard specification for steel line pipe, black, plain end, longitudinal and helical seam, double submerged - arc welded

    雙埋弧焊縱向和螺旋焊縫平頭無鍍層鋼制總管的標準規范
  5. As far as model is concerned, the forth generation software should be characterized with spatial entity - oriented. the paper established the geographic spatial model based on the thinking of object - oriented ; studied the structure of the model " s elementary unit - - geographic entity ; brought forward the concept of geometric data type which characterize entity ' s spatial feature in the structure ; defined five kinds of geometric data types such as point, arc, area, composite arc, composite area ; and formalized their collective operation using hypergraph. at the end of this paper writer studied preliminarily the method of entity query and analysis based on the model

    本論文從面向對象的基本思想出發，建立了面向對象的地理空間模型；研究了地理空間模型中的基本單位? ?地理實體的結構，針對實體結構中用來表徵實體空間特性的組成部分? ?幾何對象，提出了其取值范圍，即幾何數據類型的概念；對點、弧、面、復合弧和組合面五種幾何數據類型進行了定義；並使用超圖工具對幾何數據類型的集合操作進行了形式化描述；對基於面向對象的地理空間模型的實體查詢和分析方法也做了初步研究。
  6. One pencil is the simulative milling cutter. parameters setting, milling cutter radius compensation, graphics drawing of the work - piece machined, realizing local control, etc. are the tasks of pc, while line & arc interpolation, motion segment acceleration & deceleration control, position protection at a high precision rate and so on are the duty of dsp motion controller. in the end, the system can draw the cutter center track of the work piece ' s program track accurately

    上位pc機主要完成相關參數設定、刀具半徑補償相關運算及繪制被加工工件的輪廓（程編軌跡） 、實現本地控制等內容；下位機dsp控制器則充分利用美國ti公司的tms320c31浮點dsp的高速度、高精度完成運動控制中的實時直線和圓弧數值插補、運動段加減速控制、運動軸行程限位保護等內容。
  7. The mafic dykes are characterized by arc - like trace elements, high initial 87sr / 86sr ratios and low end ( t ) values, and show some familiarities with the emii - mantle source

    海南島基性巖脈具有與「島弧」特徵相似的微量元素組成特徵以及高sr 、低nd的同位素特徵，表明其源自具有em特徵的富集地幔。
  8. We also calculate the average crossing number aac ( n ) of all of the 4 - regular graphs for n < 12 and the average crossing number arc ( n ) of some random 4 - regular graphs of degree 4 for n < 16. at the end of the paper, a conjecture that the average crossing number of regular graph of degree 4 is o ( n2 ) is given

    同時計算出n 12的所有四正則圖的平均交叉數aac （ n ） ，和n 16的隨機四正則圖的平均交叉數arc （ n ） ，並根據計算結果提出四正則圖的平均交叉數為o （ n ~ 2 ）的猜想。
  9. Because the active millimeter wave and passive infrared system arc complementary to each other, the millimeter wave and infrared combined system is one of the best technical choices in the future intelligent guidance. it greatly improves the level of intelligentiz. ation and fighting competence of weapons, and is widely applied in end guidance systems

    由於主動毫米波和被動紅外的性能具有好的互補特性，使得主動毫米波被動紅外復合制導成為一種理想的智能制導技術，它能夠大大提高精確制導裝備的智能化水平和作戰能力，並被廣泛應用於末制導系統中。
  10. Analysis and research were made for relation about max external pressure resisting capacity under condition of different ratio between straight section length and end arc radius on the flatted tubes with same circumference and tube wall thickness by using analytical technology of finite element

    摘要應用有限元分析方法，對相同周長、相同璧厚的扁管在直邊段和圓弧半徑的不同比值條件下與所能承受最大外壓力的關系進行了分析。
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