離軸比 的英文怎麼說

中文拼音 [lízhóubǐ]
離軸比 英文
oar
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 軸 : 軸Ⅰ名詞1. （圓柱形的零件） axle; shaft 2. （對稱部分的直線） axis 3. （圓柱形的纏繞器物） roller; spool Ⅱ量詞（用於纏在軸上的線以及裝裱帶軸子的字畫）
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  1. Results the diagnostic accuracy of cut film with conventional ap and lateral views was 80. 5 %, the diagnostic accuracy of cine film with angulated views was 90. 0 % and the diagnostic accuracy of dsa using non - ionic contrast medium with angulated views was 96. 5 %

    結果用快速換片心血管造影設備和常規正側位元投照時的兒童先天性心臟病心血管造影診斷符合率為80 . 5 % ，用電影心血管造影設備和軸位元成角投照技術時的造影診斷符合率為90 . 0 % ，採用數字減影心血管造影設備，軸位成角投照技術和非離子型對比劑時的造影診斷符合率為96 . 5 % 。
  2. Sealed from water and dust, and employing an optics system consisting of two oval - shaped mirrors to transmit the sight picture to the firer, the oavd is designed to be intuitive to use and more accurate than electronic systems

    離軸式觀察裝置經過密封能防水、防塵，是具有兩個橢圓形反射鏡組成的光學系統，觀察目標更為直觀，與電子系統相比也更為準確。
  3. This paper discusses the polygon medial axis definition of gis and calculation geometry, and their main distinguishing feature, pointes out that the polygon medial axis should be the locu of the equal - distance points to two or more edges of the polygon ; analyzes the relevant different algorithm and cases in practice, and proposes the geometry means in theory relatively rigid and widely meeting the requirements in practice - dotted pair rank method and the map algebra polygon medial axis method, utilizes them to offer several polygon medial axis calculation examples

    摘要比較了當前國內外gis中和計算幾何中關于多邊形中軸的定義，討論了它們的主要特點，指出多邊形中軸應是到兩個以上邊距離相等點的軌跡，並據此分析了相應的各種演算法和實際應用場合，提出了理論上較為嚴密、能夠廣泛滿足實際應用需要的幾何方法點對序列法和地圖代數多邊形中軸法。
  4. This research was also supposed to provide a valuable reference for the construction of 500kv eastern hangzhou transformer substation project. to guarantee the rationality of the torsion and bending load application, a set of experimental equipments was transformed from a traditional one by exerting tangential force on the brim of the fan board and conducting broad - billed roller application. in the actually fulfilled experiments on the capabilities of the members under different ratios of torsion and bending, the equipments proved to be well qualified in load applying to large - tonnage members

    試驗中，為保證扭轉及彎矩荷載施加的合理性，在浙江大學工程結構試驗室原有的加載設備的基礎上，分別採用在扇形板邊緣施加切向力和寬軸承滾軸加載的方法，改造並調試出一套可專門用於大噸位構件施加扭轉荷載及組合作用的試驗設備，並利用這套設備進行了離心鋼管混凝土構件在不同彎扭比的組合作用下的試驗研究。
  5. Then an thorough computer modeling using finite element program with material, geometry and state triple - nonlinear taken into account is carried out on a series of influencing factors, such as comparison with npn - beam splice connection, comparison of varies designed theories, and the varying of fraction coefficient, diameter, grade, pretension and arrangement of bolts, thickness of web and flanges of beam and column, splicing location, axial loading on column, etc. lots of useful conclusions are drawn form computer modelling. finally, design and construction suggestions are given out. this study fills the black in the field of steel beam - to - column connection with cantilever beam high - strength bolted - splicing at both home and abroad

    然後，本文在考慮材料、幾何和狀態三重非線性的基礎上，對該連接形式進行了全面的計算機模擬，主要考慮了帶懸臂梁段全螺栓拼接的樑柱連接節點與無拼接的樑柱連接及翼緣對接焊接腹板拼接的連接節點的對比，各種設計方法之間的對比，以及翼緣拼接和腹板拼接的螺栓間距、直徑和數量，拼接點與梁端之間的距離，梁和柱的翼緣、腹板厚度，柱的軸力，接觸面的摩擦系數，翼緣和腹板拼接板的厚度等因素的影響。
  6. The propagules of b. gymnorrhiza and a. corniculatum undergo some growth before becoming detached from the parent plant. they accumulated large amounts of ions during the development while the level of ion concentrations are consistently lower in their embryos compared to leaves of parent plant. before detachment, the growth of hypocotyls were reduced, the water content declined, while the osmotic potential was approaching to or more negative than that of the solution on which their parent plant vegetating

    另一方面維持較大比例的有機滲透調節劑，控制細胞液中鹽離子的水平以減少代謝毒害；木欖成熟胚軸的密度接近或低於生境中海水的密度，適于隨水漂浮和傳播；胚軸內離子濃度呈下降趨勢，但最終以達到和母樹生境中的離子濃度水平相一致為目標。
  7. Asm 1. 0 contains the entire ccos process, including best - fit sphere calculating, profiler test and anslysis, virtual grinding and polishing, cnc grinding and polishing, etc. as results, the manufacturing process of a f / 1. 17, 770mm x 200mm rectangular even high order off - axis aspheric mirror is presented as an example in detail

    最後，比較詳細地介紹了770mm 200mm ， f 1 . 17高次離軸非球面反射鏡的加工、檢驗過程，加工后200mm口徑范圍內加工精度達到0 . 013 rms ，完全滿足了設計要求。
  8. The conclusion that ez is more important during the breakdown of rf ion source is made out by comparing ez and e 6 before breakdown, and then, the breakdown criterion of rf ion source is deduced, and the relation between breakdown voltage and pressure is analyzed too

    通過比較擊穿前高頻電場的軸向和幅向分量，得出了軸向電場在高頻離子源擊穿中起主要作用的結論，並進而推導出了高頻離子源的擊穿判據，得出了氣體擊穿時離子源擊穿電壓和放電管內氣壓的關系。
  9. Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles

    文摘:介紹了國內外預測航天飛機氣動加熱的工程計算方法.給出了軸對稱、非軸對稱和機翼前緣等各種外形駐點熱流密度的計算，分析和比較了平板、錐體的層流和湍流熱流密度計算的各種方法，概述了航天飛機迎風面中心線和離開中心線橫向熱流密度的計算.計算結果表明，本文方法用在航天飛機氣動熱環境初步設計中比較簡單並且有足夠精度
  10. In this thesis, the resistance performance of concrete - filled steel tubes under simple load is summed up first. according to the resistance expressions under press and bending, a concise formula of resistance under torsion is deduced on the ground of two former formulae. the format of this formula is of good similarity with that under press and bending

    在對比了原有的兩種計算方法的基礎上，對離心鋼管混凝土構件在純扭轉作用下的極限承載力公式，提出了與結果試驗更加吻合、形式上更為簡潔的抗扭承載力實用計算公式，在形式上與軸壓和彎曲承載力公式統一起來。
  11. ( 3 ) the most principal factors that influence the supersonic atomization process include the flow ratio of the gas - liquid metal ( gmr ) value, the flow of atomizing of gas and the range of the inverse vortex taper. the more of the value of three factors, the more advantage they are for the atomization and the more fine the powders are. ( 4 ) the produced powders are the best in efficient atomization efficiency, particle diameter, particle shape and dispersion when the solder alloy is zhl63a, atomizing medium is n2, the protrusion h = 6. 0mm, atomizing gas pressure p = 100mpa, over - heat temperature t = 167 ( t = 350 )

    研究結果表明： （ 1 ）超音速霧化器的氣體流場在導液管下端形成一個倒渦流錐，在二維空間上呈軸對稱的雙峰分佈，負壓形成於這個倒渦流錐內； （ 2 ）修正後的霧化氣體速度公式可以滿足超音速霧化的要求； （ 3 ）影響超音速霧化工藝最根本的因素有氣液質量流率比（ gmr ）的大小、霧化氣體流量和倒渦流錐范圍，三個因素的值越大，對形成細粉越有利； （ 4 ）在焊錫合金為zhl63a ，霧化介質微n _ 2 ，導液管突出高度取h = 6 . 0mm ，霧化氣體壓力取p = 1 . 0mpa ，合金過熱度取t = 167 （ t = 350 ）時，所制得的粉末在有效霧化率、顆粒球形度、粒度及其離散度三個方面綜合性能最好。
  12. Through militia programs, the final plan is to change the transmission ratio of gearbox, the parameter of friction piece as well as the gear width of the sixth gear of the second shaft. finally, the parts of transmission system - clutch, gearbox, driving shaft, driving bridge are checked and the problems are solved

    本文通過多目標規劃，最終的優化方案是適當改變變速器傳動比、摩擦片參數及二軸六檔齒輪齒寬，最後對傳動系各部件- - -離合器、變速器、傳動軸、驅動橋等進行了校核，使問題得到妥善解決。
  13. But for some special medium materials, such as liquid crystal display controller pcb, magnifiers must be used to gather images to gain enough precision of inspection for the weak contrast between the basic board and the conductor. the images near the light axes are much cleared than that far away from the light axes, so the images can not be simply segmented by black and white and inspected with the methods of pcb which are based on the black white image

    但對於一些特殊介質材料，如液晶顯示控制電路板的檢測，由於基板和導體之間對比度不大，而且為了達到檢測精度，必須採用放大鏡頭進行圖像採集，成像系統光軸附近的圖像成像質量較好，而偏離光軸較遠的圖像質量較差。不能通過簡單二值化來很好地分割圖像，而已有的印刷電路板檢測方法都是建立在二值圖像進行分析的基礎上。
  14. A simulation is carried on three swirling flow with different nonaxisymmetric tangential injection in a horizontal straight pipe to find if neglect their deflations whether they equate to axisymmetric module. a conclusion can be found that when nonaxiwymmetric conditions are occurred, there will be deflections near entrance that are different from axisymmetric condition, and these deflections will be erased on area far from entrance

    另外對水平圓管中三種非軸對稱切向入流按軸對稱近似計算時進行數值比較分析，發現三種非軸西安理工大學碩士學位論文對稱切向入流條件下在近入口處出現很大的偏差，這種偏差不能忽視;而經過充分的發展之後，這種差別將被抹平，即在離入口較遠的區域各種情況的計算結果與軸對稱條件比較差別不大。
  15. Relaxation factors are adopted. a program is produced to simulate swirling air flow in a horizontal straight pipe and compare with experiment data. the simulation prove that the modified k - model can predict the core, annular and wall regions near entrance and axial velocity far from entrance, but it ca n ' t predict tangential velocity well in weak swirling area far from entrance

    編程計算水平圓管內螺旋氣流的流動參數並與實驗數據對比，結果表明修正-湍流模型在近入口處基本上能預測出中心區、環形區和近壁區的流動特性，在遠離入口弱旋流區域對軸向速度的預測符合實際情況，但是出現對周向速度修正過大的現象。
  16. Conclusion dynamic picture angiography with digital subtraction using non - ionic contrast medium under rapid injection is the key for claiming the high quality imaging diagnosis of congenital heart disease in children

    結論對于兒童先天性心臟病心血管造影而言，使用動態電影攝片，作數字血管減影，採用軸位成角投照技術，使用非離子型對比劑和快速注射對比劑是取得高質量圖像和理想診斷效果的關鍵。
  17. Rotating machines ( i. e. gear - box ) are always assembly of many associated parts, such as gears and bearings. commonly, high rate of fault isolation for such machines need enough test points. since the machines are always too compact to fix enough sensors, it is significative to study on how to use fewer sensors for machine monitoring and fault diagnosis by vibration analysis of rotating machine groups

    復雜的旋轉機械往往由軸承、齒輪等大量零件構成，在對這樣的設備進行狀態監控和故障診斷時，為提高故障隔離率，通常需要為每個零件就近安裝傳感器，但由於機械結構的緊湊性和性價比的限制，這一點往往難以實現。
  18. Chapter 4 : applying the definitions of the generalized second and fourth order moments, the beam propagation m2 - factor and the kurtosis parameter of coherent and incoherent combinations of two - dimensional off - axis elegant hermite - gaussian ( ehg ) beams are derived analytically and numerically. and the power in bucket ( pib ) is also presented numerically. our results illustrate the propagation properties of the beam through a first - order optical abcd system

    第四章：討論了相干和非相干離軸完美厄密高斯（ eleganthermitegaussian （ ehg ） ）光束組的傳輸特性，通過解析推導和數值模擬，研究了相干和非相干的離軸ehg光束組的傳輸，得出並比較了相干和非相干的離軸ehg光束組的光束質量因子、陡峭度和筒內的功率（ powerinbucket ） 。
  19. If we calculate the tangent of this angle, we now have a value that corresponds to the ratio between the displacement on the x axis versus the distance away from the viewer on the y

    如果我們計算這個角的正切，我們就可以知道相應的比值： x軸上的位置相對于y軸上的觀察者的距離的比值。
  20. On views separation and coordinate standardization, a coordinate axis projection - based approach and an image scanning - based approach are proposed for views separation, the former reduces the compare times of 2d primitive in drawings and raises the efficiency simultaneously, the latter can separate free nember views of engineering drawing accurately and it has no correlation with complexity of primitive, then, two sets of 2. 5d coordinate systems are introduced as intermediates to relate the 2d original drawing system to the 3d space projection coordinates anfd a formal technique is developed for constructing transformation matrices between coordinates

    3 .在工程圖視圖分離和坐標規格化方面，提出了改進的坐標軸投影分離演算法和基於圖像掃描的視圖分離演算法。前者減少了工程圖中二維實體的比較次數，提高了運行效率;後者可以準確分離具有任意視圖數目的工程圖，且演算法的穩定性與邊界復雜度無關。通過引入二維半中間坐標系推導出了從繪圖坐標繫到空間投影坐標系轉換的轉換運算元並給出了基於轉換運算元的坐標規格化演算法。
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