直徑曲面 的英文怎麼說

中文拼音 [zhíjìngqūmiàn]
直徑曲面 英文
diametral surface
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 徑 : Ⅰ名詞1 （狹窄的道路; 小路） footpath; path; track 2 （達到目的的方法） way; means 3 （直徑的簡稱...
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 直徑 : diameter; diam
  1. The relation of radius of curvature and error as well as formulas of increasing parameters on condition of constant error are diverted. the equation of the line on the center of approximate circular arc is obtained ， and it can avoids the trouble that numerical solution owns possibility of no convergence and simplifies node calculation of non - circular curve

    導出了曲率半徑與逼近誤差之間的關系和等誤差條件下的參數遞推公式，建立了通過逼近圓弧圓心的直線方程和圓心坐標計算公式.按這種方法用圓弧逼近平面參數曲線，不需要求解非線性方程組，避免了計算可能不收斂的麻煩，簡化了非圓曲線的節點計算過程
  2. Corneal surfaces in eyes with regular astigmatism are thought to be toroidal surfaces. based on mathematical models for corneal surfaces before and after treatment, a corneal ablation model is given for such refractive errors as spherical myopia, compound myopic astigmatism, and simple myopic astigmatism. a similar corneal ablation model is also given for such refractive errors as hyperopia, compound hyperopic astigmatism, and simple hyperopic astigmatism

    採用超環面（ toroidalsurface ）建立起規則散光下的角膜曲面模型方程;定量研究了手術光學區屈光不正兩種通用的矯正模型，一種模型適用於單純近視、復性近視散光、單純近視散光的矯正，另一種模型適用於單純遠視、復性遠視散光、單純遠視散光的矯正;另外，作為影響手術效果的重要因素，提出了一種用於光學區直徑和過渡區寬度均可調節時過渡區角膜切削量的計算模型。
  3. The field forms a protective shell called magnetosphere that has a radius around 10 times that of the solid earth. but strong eruptions on the solar surface can seriously distort this shell, creating geomagnetic storms

    地球磁場形成一個大小約地球直徑十倍稱為磁層的保護殼，當太陽表面出現猛烈的爆發，便會嚴重扭曲這個保護殼，形成磁暴。
  4. At the surface of the pollen grains there are three types of aperturates, including three porates type, three colpates type and three porate - colpates type ; and four types of sculpture, namely, reticulate, striate, striate - reticulate and verrucate. the upper epidermal cells of the leaves of 12 species plants are detected with hpias - 1000 image analytic system through the treatment of binarization, and the experimental methods are proved stable. the results indicated that the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slf ) of the epidermal cells of the middle lamina in the third node of leaves starting from the lowerest part of the stem have a relative constant range and could distinguish from each other. oieanolic acid, l, 5, 8 - trihydroxy - 3 - methoxyxanthone and swertiamarin are separately detected on the tlc, and the different chromatogram of various plants can be considered as characters of identification. the contents of oleanolic acid in 12 species of plants are determinated by hplc, but among the different plants and botanical organs their contents are different, and the highest content in flowers

    本文對川鄂產獐牙菜屬藥用植物資源進行了野外調查、標本採集和鑒定，對12種乾燥藥材的性狀進行了描述，提供了可以鑒別的特徵。通過掃描電子顯微鏡觀察的12種本屬藥用植物的花粉粒均為單粒花粉，萌發孔有3孔型， 3溝型和3孔溝型三種類型；表面紋飾包括網狀紋，條狀?網狀紋，條狀紋和瘤狀紋四種類型。用hpias ? 1000高清晰度彩色病理圖文分析系統對葉片上表皮細胞作圖像分析，並進行方法學研究，結果表明，同種植物莖上第3節葉片中段主脈和第1側脈之間葉上表皮細胞垂周壁彎曲程度sfc值和細胞縱、橫向直徑的比值slf值，種間有顯著差異，每種都有相對恆定范圍值。
  5. Three kinds of results are obtained by simulation calculating the two models : the composed vector diagrams of the axial velocity ( v ) and the radial velocity ( vr ) at the different times in the symmetry section ; diagrams of curves of the velocity vector ( v ^ ) and ( vr ) at the different times in the different sections ; diagrams of the secondary flow vectors at the different times in the different sections

    我們對兩種不同直徑的s型血管進行了有限元模擬計算，得到三種結果：在對稱面內不同時刻的軸向速度v _和徑向速度v _ r的合成矢量；在不同截面不同時刻的速度分量v _和v _ r的曲線圖；在不同截面不同時刻的二次流的矢量圖。
  6. The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected

    用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究，提出了一系列可供參考的數據：確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角；討論了第二準直器的尺寸和發散，以及使用第二準直器造成的強度損失；給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率，以及多種組合情況下譜儀的解析度曲線；對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。
  7. On the basis of the study of the theory and appraise method on land use in the small towns from home and abroad, this paper at first conducts a deep study on the development and role of the small towns, indicating that its development has sawn an uneven development phrase and becomes a carrier of the enterprises, a pool of surplus laborers, a hub of material exchanges between the rural and urban areas, a base of spiritual civilization, an important way to achieve urbanization. second, it conducts a study on the situation and features and the problems the land use, indicating that the efficiency of the land use is low, which has a direct influence on the development of agriculture and the role of the small towns. and the study of the demand of the land indicates the shortage of land is serious, and the small town must rationally use the land and increases its intensive role and the economical efficiency to meet the demand

    在分析國內外已有關于小城鎮土地利用的理論與評價方法的基礎上，首先對小城鎮在我國的發展、地位和作用進行了深入的分析，判明我國小城鎮發展經歷了一個曲折向上的發展階段，已成為鄉鎮企業的載體，農村剩餘勞動力的蓄水池，城鄉物資交流的樞紐，農村精神文明的基地，是我國城市化的重要途徑；其次，對小城鎮土地資源利用現狀和特徵進行了探討，並對發展小城鎮建設導致的土地利用問題進行了剖析，表明目前我國大多數小城鎮土地效益和規模效益低下，佔用耕地過多，直接影響農業的發展，影響小城鎮的地位和作用；通過小城鎮土地供需分析研究表明，我國土地短缺十分嚴峻，小城鎮土地需求缺口較大，小城鎮必須合理利用現有土地，增強集約功能和土地經濟效益，從而緩解需求壓力；最後，論文通過運用特爾菲法，描述統計分析法、多元統計分析（主成分分析）法和系統分析法中的層次分析法（ ahp ）等一系列方法，結合定性和定量兩方面，從土地質量、土地資源數量與結構、土地經濟效益、環境效益、社會效益等五個方面進行分析，篩選、建立了土地資源利用評價指標體系，在因子評價的基礎上，建立了土地利用綜合評價模型，並給出了評價過程和方法。
  8. To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. the research is divided into four parts : 1 ) taken all forces the piston endured into consideration when radial piston motor working, the force between roller ( or ball ) and orbit is deduced. the simple style of the press expression can be confirmed by ignoring minor influence factors after analysis all factors that will influence this press

    靜壓傳動技術在各類工程機械中得到廣泛的應用，對作為其核心部件的徑向柱塞式低速大扭矩液壓馬達的研究顯得十分重要，為了能直接對這種馬達進行壽命估計，並能在相同工況下求得壽命最長的軌道曲線，本文從設計等接觸應力內曲線的角度對這類馬達作探討性的研究，主要從以下四個方面進行： （ 1 ）綜合考慮徑向柱塞式液壓馬達工作時的各種主要受力狀況，對柱塞組件進行受力分析，並通過模擬分析影響軌道和滾動體間正壓力的各個因素，得到正壓力的簡化表達式。
  9. Among railway line ' s plane design parameter, the minimum radius of curve, transition curve ' s type and length, straight line between two curves, centre - to - centre distance of track are key factors which confine railway to bringing up speed, moreover these factors among maglev railway request even more strict

    由於高速磁懸浮鐵路採用了非接觸式的行車技術，舒適性將得到很好的改善。鐵路線路平面設計參數中，最小曲線半徑、緩和曲線長度、夾直線長度、線間距離是限制列車速度的關鍵因素，高速磁浮鐵路同樣如此。
  10. ( 3 ) we explore photorefractive screening solitons and characters of beam transmission in sbn : 61 : cr crystals. the dependence of beam diameter at the crystal output face on applied field is presented. and influences of the limiting space charge field of the crystals on the experimental results are analyzed

    （ 3 ）初步研究了兩塊不同摻cr濃度的sbn 61 cr晶體中的屏蔽型空間孤子效應，以及不同外加直流電場作用下光束在晶體中的傳輸，給出了晶體出射表面處光斑直徑隨外電場的變化曲線，並分析了晶體中空間電荷場的飽和效應對實驗結果的影響。
  11. The surface of conventional engineering part is composed of simple analytical surfaces and four - boundary ruled surface primarily. therefore a point cloud segmentation method based on those feature surfaces is proposed. several algorithms to identify the simple analytical surface feature are investigated and discussed

    常規工程零件的外表面中包含了大量的特徵曲面，如簡單解析曲面和四邊直紋面，因此，本文提出基於特徵曲面的的點雲分割方法，研究幾種識別簡單解析曲面的演算法；研究由點雲擬合b spline和b zier曲線的理論基礎，總結曲面擬合的幾種方法，提出一種反求定半徑滾球圓角的方法。
  12. The project is used which measuring instrument moved along axis and the measured quartz tube rotated and fixed ort a position. according to data of outer diameter and wall thickness of different sections and positions, it can calculate the parameters of section area, ellipticity, wall thickness error, flexibility and so on

    系統將激光掃描綜合測量儀、直線與回轉伺服控制系統和計算機有機地結合，採用測量儀軸向移動，而被測石英管在固定位置上轉運而不移動的測量方案，根據測量出多個截面和多個不同位置的外徑和壁厚數據，計算出被測石英管的截面積、橢圓度、偏壁度、彎曲度等其它參數。
  13. Conclusions can be drawn from the graph of brake torque change of the mrp brake : using different mrp, the brake torque varied very much ; with the same working diameter, the same width of working face and the same distance, the brake torque of plate mrp brake is bigger than that of cylindrical mrf brake ; in a certain range of temperature, temperature has little effect on the brake torque ; while working diameter and working distance of the brake has obvious effect on the brake torque, so in the design, these two parameter should be emphasized

    從制動器制動力矩的變化曲線得出：磁流變液不同，制動力矩變化很大；在相同工作面直徑、工作面寬度和工作間隙的條件下，盤式磁流變液制動器的制動力矩比圓柱形磁流變液制動器大；在一定的溫度范圍內，溫度對磁流變液制動器的制動力矩影響不大；而制動器的工作直徑、工作間隙對磁流變液制動器的制動力矩有明顯的影響，所以在設計中應重點考慮這兩個參數。
  14. And i also propose a new method oftracking control. this method divides desired trajectory into many pieces and follows the pieces one by one. with the method, the calculation of curvature of tracking trajectory and complex calculating process can be avoided, and the performance of real - time and precision can be improved

    在跟蹤方面，本文提出了將被跟蹤路徑分成若干微小線段，應用以微小直線段代替曲線的方法，然後分段跟蹤，並給出了這種方法的穩定性證明，模擬結果證明了其有很好的跟蹤效果。
  15. Curved - face bayonet ring couplings for rolling stock part 11 : reducing straight couplings

    機車車輛用曲面卡套式管接頭.第11部分:異徑直通管接頭
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