線對直徑 的英文怎麼說

中文拼音 [xiànduìzhíjìng]
線對直徑 英文
diameteroverpairsdop
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
  • : 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...
  • : 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...
  • 直徑 : diameter; diam
  1. The variable parameter taper equation was built with diameter determination datas of different parts of cryptomeria fortunei plantation sample wood, in combination with the relative tree height curve mode and other assistant equations, volume table of c. fortunei plantation standing was compiled, and provided the scientific basis for the production and application

    摘要利用柳杉人工林樣木各部位測定數據,建立可變參數削度方程,配合威布爾分佈函數、相樹高曲模型及其他輔助方程,編制了柳杉人工林林分出材率表,為生產應用提供科學依據。
  2. The relationship between the holding temperature and the average of the equal - area - circle diameter or the average of the roundness was parabolic

    而等溫溫度最終球化組織的平均等積圓和平均球化度的影響呈拋物關系。
  3. The optical near - field distribution and propagation properties of solid immersion lens system are analyzed in detail when illuminated by linearly polarized focusing gauss beam. the change of the optical intensity and beam dimension at the bottom of solid immersion lens with different refractive index and different distance are discussed. the simulated results reveal that the higher the refractive index is, the stronger the optical intensity and the smaller the beam dimension at the bottom of the solid immersion lens will be

    編制了固體浸沒透鏡近場超高密度光存儲系統進行模擬的二維時域有限差分程序,實現了固體浸沒透鏡光存儲系統的數值模擬;著重研究了偏振的高斯光束通過固體浸沒透鏡的光傳輸和近場光場分佈特性;分析了固體浸沒透鏡底面出射光強、光斑隨固體浸沒透鏡折射率的變化、光透過固體浸沒透鏡后的強度、光斑隨離開固體浸沒透鏡底面距離的變化。
  4. 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(等傾角螺旋)槽形,可以大幅度改善燃燒室的冷卻性能.斜航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,可以生成多種母輪廓回轉體外表面上的斜航數控加工程序.燃燒室收斂-擴張段的母斜率變化大,加工難度大,是斜航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,研究了針該類型工件的片銑刀選擇、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,其他相似類型零件的加工亦具有參考意義
  5. The structure and operating principle of an air - charged split - type adjustable shock absorber was described, e non - linear parameterized mathematical model of this shock absorber ' s damping characteristics was established according to fluid mechanics theory and the main structural affection factors to shock absorber ' s damping performance, such as the diameter of piston valve orifice, the diameter of adjustable orifice, the initial volume of gas chamber, the diameter of piston rod, the inner diameter of oil pipe and so on, were analyzed by simulations

    摘要通過分析一種分體式充氣可調阻尼減振器的結構和工作原理,運用流體力學理論,建立了該減振器阻尼特性的非性參數化模型,模擬分析了活塞阻尼閥孔、阻尼調節孔、氣室初始體積、活塞桿、油管內等主要結構參數減振器阻尼性能的影響,通過試驗測試,得到了減振器樣件的阻尼特性及其可調范圍。
  6. I have taken impotance to analyze the rallying point of famous product, concrete cost and capability of providing and guarantee in this artical, meanwhile, i have caculated the quantity of concrete needed for the year and got the regression equation with the historic data for drilling footage of eight years and the consuming quantity of oilwell cement by the method of linear regression, and it has very significance for the making of stock contract and the plan of concrete production, i have analyzed the physical distribution of oilwell cement by the transpotation flex and the advantage or disadvantage between direct distribution and distribution to store in this artical, and i have tried to find the balance point of the two distribution ways by the ecnomic analysis and pointd out the conception of economic semidiameter, and come to the conclusion of direct distribution, distribution to store, and subarea of distribution to store at last

    本文油井水泥供應商在品牌號召力、水泥成本、供應保障能力等方面進行了詳盡分析,並供應商進行了能力排序;用性回歸方法從八年鉆井進尺與油井水泥消耗量的歷史數據推算了當年度油井水泥需求量,得出了回歸方程,這于油井水泥采購合同的制訂、水泥供應商生產計劃的制訂具有相當重要的意義;從運輸彈性分析出發油井水泥物流配送進行了研究,達配送、入庫配送的優缺點進行了詳細的分析,在經濟分析的基礎上力求找到兩種配送方式的均衡點,並提出了經濟半的概念,得出了達配送、入庫配送、入庫分區距離等幾項結論。
  7. Furthermore, referring to the literature and considering the specific experimental conditions given by the research, expression of the change of feed rate with time is presented, to obtain the linear growth of the diameter of pre - sintered glass beads, thus the distribution of beads size is relatively well controlled and raw material is spared in some extent. eventually, during the experiment discrete change of feed rate is implemented, and the practical changes of average diameter are plotted, then the results are compared with the theoretical calculated data

    另外,本文通過造粒技術、燒結過程的大員文獻調研,結合本研究的具體情況,通過控制進料速率呈連續性變化,基本實現了燒結前球坯性生長變化,從而更有利於實際生產中的產品粒度控制以及做到節約用料,並在試驗操作中以離散型進料速率變化來加以比較驗證。
  8. The probe ' s linearity, temperature and dynamic characteristics are analyzed base on principal theory of eddy - current displacement sensor, such as the influence of the coil q value to the linearity characteristic, influence of the diameter of coil to the linearity characteristic, influence of coil resistance to the temperature characteristic, influence of the measuring coil to the syntony loop

    在介紹渦流位移傳感器的基本理論的基礎上,分析了傳感器探頭性特性、溫度特性、動態特性的影響因素。從探頭圈q值性特性的影響;探頭性的影響;探頭圈電阻溫度特性的影響;激勵信號溫度特性的影響:檢測圈?振迴路動態響應特性等方面分析並提出製作高質量傳感器探頭的改進措施。
  9. The animal experiment is carried out in the first hospital of shanghai through renovating the injured nerve of the rats. four projects are used in this experiment : the conduits coated with pgla, the conduits coated with chitosan, the conduits coated with chitosan adding bridge - yarn and self - nerve migration. after 12 weeks, we observe and analyze the thickness of marrow theca, the diameter of axone, the density of regeneration nerve and then do electromyography and statistics analyzing, finding out that the third conduits have the best recovering effects on the injured nerve, close to the self - nerve migration

    因此我們選用加筋結構神經導管進行動物實驗。本課題動物實驗在上海市第一人民醫院進行,分別通過加筋結構塗pgla導管、加筋結構塗甲殼胺導管、加筋結構塗甲殼胺並加載縫芯導管和自體神經移植四種方案大鼠進行損傷神經修復實驗。在術后12周四種方案再生神經的髓鞘厚度、軸突、數量密度進行觀察分析,並進行肌電圖檢測和統計學分析。
  10. 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

    我們兩種不同的s型血管進行了有限元模擬計算,得到三種結果:在稱面內不同時刻的軸向速度v _和向速度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的曲圖;在不同截面不同時刻的二次流的矢量圖。
  11. The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing

    于單排垂射流,沖擊冷卻效果隨射流雷諾數的增加、孔間距與比的減小而得到提高,沖擊間距比為2時換熱效果最好;沖擊孔中心向通道封閉一側傾斜后,射流沖擊冷卻的范圍變窄,當沖擊間距比大於2時駐點區的流換熱能力明顯降低;于雙排沖擊射流,孔排間距與比的增加使沖擊冷卻范圍變大,但在兩排孔之間區域的流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下,後排射流的沖擊換熱效果要遜於前排射流。
  12. ( 3 ) based on a close research of the cad model representation in mdt, this paper picks up the model information expressed in the boundary representation ( b - rep ) using the development kits of objectarx and mdt api offered by autodesk inc. ( 4 ) the direct slicing data are processed so as to realize the sorting and fitting of short lines, the cutting tool compensation, the layer contour filling and the optimization of the scanning paths, etc. ( 5 ) designs the architecture of rp data processing software according to the functional requirement of rp, and integrates all the functional modules

    ( 3 )在深入研究mdt ( mechanicaldesktop )中三維模型表示方法的基礎上,運用autodesk公司提供的mdt二次開發工具objectarx和mdtapi ,成功地實現了mdt模型信息的提取,進而使接自適應分層演算法得以實現。 ( 4 )接分層得到的數據進行了工藝規劃。實現了層片輪廓段的排序、擬合、刀具補償以及輪廓內部填充和掃描路優化等。
  13. 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、垂聚焦單色器在不同起飛角下的聚焦曲率半和傾角;討論了第二準器的尺寸和發散,以及使用第二準器造成的強度損失;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限束方孔的尺寸、距離樣品遠近強度損失和測量中的影響做了深入研究。
  14. The soil plug has an important effect on the pile driveability, and the pile diameter has an important effect on the property of soil plug, too. then the plugged effect judging method and nonlinear model of soil plug of the large ( super large ) diameter, super length, deep penetration pile have been established. hyperbolic model of soil plug was also proposed to calculate the inside static resistance

    3 .土塞、超長樁的可打入性有重要影響,而樁大小接影響土塞特性,本文建立了大(超大) 、超長、深貫入樁土塞閉塞效應判斷方法和土塞非性雙曲計算分析模型,並提出了「內側極限摩阻力動態分佈」模式。
  15. According to the analysis of the table lookup, the graph method and the simulating formula method of selecting bolt diameter without controlling pretightening force under dead load were presented in this paper

    摘要通過查表法資料進行分析,提出了靜載時選擇不控制預緊力的緊螺栓聯接螺栓的圖法和模擬公式法。
  16. In this paper, the author applies photoelectric technology to design a set of real - time on - line unosculant beeline diameter measurement system by ccd. the device can measure the diameter of lifting rope by continuous real - time on - line unosculant measurement, then show the diameter by led. in this means, the measurement is fast and efficent, the extent of automation is high, and the way of display is intuitionistic

    本論文應用光電技術,設計了ccd實時在非接觸式測量系統來提升鋼絲繩進行實時在非接觸式測量,以led數碼管顯示,具有測量快速高效、自動化程度高、顯示觀等特點,並能克服人工檢測所具有的缺點。
  17. 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、幾何和狀態三重非性的基礎上,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接焊接腹板拼接的連接節點的比,各種設計方法之間的比,以及翼緣拼接和腹板拼接的螺栓間距、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。
  18. Based on the theory of geometrical optics, the relationship between the axial force exerted on the micro - sphere particles in the mie scattering field and the main parameters of laser is calculated quantitatively when the absorption is considered. the results not only show the relationship between the axial force and some parameters, that include the absorption coefficient of microscopic particles, the laser wave - length, power and so on, but also are useful for choosing parameters in experiments

    摘要以射光學模型為基礎,微粒遠大於激光微束的米氏粒子在考慮光的吸收時軸向力與光源參數的關系進行了計算,計算結果給出了軸向力與微粒的吸收系數、波長、激光功率等參數的關系,為實驗中參數的選擇提供了依據。
  19. Find the law of the influence from the injection pressure to the filling time and the cavity pressure and make certain of the best filling time, injection time and injection pressure. though the analysis of the flowing velocity and pressure spread of the key position element in the injection parts in different gate position, we forecast the injection parts quality and the possibility injection flaw and its position, optimize the gate position. in this paper, though the research of analogue of the runner system of metal - powder injection molding and the process of injection molding, we get the law of how the injection parameter influence the injection process

    在相同的注射條件下,通過分析喂料在不同和長度流道中的流動規律,得到了喂料在流道中的速度場、壓力場和溫度場,找到了流道長比的合理取值范圍,並得出通過改變流道設計可實現現有設備資源充分利用的結論;給出了不同注射壓力下,型腔壓力與充模時間關系曲和喂料熔體平均充填速度與充模時間關系的曲,得到了注射壓力充填時間和型腔壓力的影響規律,確定了最佳的充模時間、注射時間和注射壓力;通過分析採用不同位置澆口注射時注射件關鍵位置單元的流動速度和壓力分佈,預測了注射件的成形質量,或可能產生的注射缺陷及位置,優化了澆口設置。
  20. ( 2 ) uniform cdse nanowire arrays with controllable lengths have been fabricated by dc electrodeposition in the aao templates with ag as their conductive substrates from dmso system under different temperature. the nanowires with the diameters from 10nm to 50nm, and the lengths from 1 ( m to 20 ( m have been obtained

    以銀作為導電基底的多孔陽極氧化鋁為模板,在dmso體系中,用恆流電沉積方法,于不同溫度下分別在為10 , 20 , 50nm的aao模板中制備出了cdse納米,並它們進行了退火處理。
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