three-dimensional d 中文意思是什麼

three-dimensional d 解釋

  • three : n. 1. 三個人[東西]。2. 三歲，三時。3. 【板球】3字型。
  • dimensional : adj. 1. 尺寸的。2. 空間的。3. 【數學】因次的；…次（元）的。
  • d :
  1. The integral equations governing the three - dimensional viscous flow inside the turbo - machinery in the rotating coordinate system are presented in this paper, the viscous effects are simulated by the distributed body force described by professor denton j. d. the time - marching method and explicit finite volume difference scheme are employed to solve the flow inside the turbo - machinery

    本文給出了相對旋轉坐標系下葉輪機械內部三維粘性流動的守恆型積分型方程組，利用dentonj . d .教授的粘性體積力法來模擬粘性對葉輪機械內部流動的影響，採用時間推進法和有限體積差分格式對葉輪機械內部的流動進行求解。
  2. The research for the binding energy of d - centers is important to the transition energy and the optical and the magneto - optical absorption of shallow center d - there have been some theoretical and experimental investigations [ 1, 4, 5, 6, 7, 8 ] about three - dimensional and two - dimensional d - centers in magnetic field, but have no works discussed the d ~ centers in quantum wells in the strong magnetic field limited

    研究d ~ -中心各個態的束縛能，對于研究d ~ -中心各能級之間的躍遷和d ~ -中心的光學和磁光吸收、新型器件的研製與開發都有很大的意義。
  3. Three dimensional braiding preform reinforced resin composite is a new type of advanced composites and used in aircraft and space, transportation, construction, military project, medical treatment and physical education etc. 3 - d braiding composites will subject to long - term tensile force during applied process, which is a long - time creep process

    樹脂基三維編織復合材料是一種先進的復合材料，它已經應用於航空、航天、交通、建築、軍工、醫療、體育等領域。在應用過程中，三維編織復合材料會受到長期拉伸力的作用，這決定了它的使用過程是一個長期的過程，因此蠕變性能成為表徵其力學性能的一個非常重要的指標。
  4. Furthermore, the fiber volume fraction of each inclined and horizontal unidirectional " lamina was assumed to be the same as that of the composites. three - dimensional stress - strain analysis was applied to each unidirectional lamina that was assumed to be transversely isotropical under on - axis coordinate system. carrying out the integration and averaging of stiffness yielded the effective elastic moduli of 3 - d braided structural composites

    採用三維應力?應變分析，在單胞的長度方向積分和平均，在給定的應變邊界條件下，採用剛度體積平均的方法，預測三維編織結構復合材料的有效彈性模量；在空間多向應力的基礎上，通過對三維編織結構復合材料破壞機理的探討，摘要提出了適用於三維編織復合材料細觀強度失效準則，預測三維編織結構復合材料的強度性能。
  5. Compares the 3 - d ift with smooth tube, the result shows that heat transfer augments, volume decreases, metallic material reduces and energy saves. so the tube with three dimensional internally extended surface have very wide engineering application background

    使用結果表明：使用了三維內肋管的換熱器同未使用前相比，換熱強度提高，體積減少，金屬材料耗量減小，能耗降低，具有十分廣闊的應用前景。
  6. In order to achieve the optimized tunneling approach, first, tunneling procedures, shift length, horizontal jet grouting length, bench length and space length between c and d part of crd method are optimized ; on the basis of these results, two kinds of tunneling schemes are calculated with three - dimensional fem and the optimized tunneling scheme is achieved. as results of the optimized scheme, the conclusion is made that the gas pipe above the tunnel of sk3 + 355 section is secure. the calculation results are verified through comparison of numerical simulation results and site - monitoring measurement data

    為得出適合本段工程的最佳施工路線，利用大型有限元通用軟體ansys對開挖順序、開挖進尺、水平旋噴長度、臺階長度及crd工法施工的c 、 d部相錯長度進行了有限元數值模擬和優化分析，並利用這些分析結果，進行了兩個施工方案的三維有限元動態施工模擬，得出了較優的施工方案，並利用施工后的地表沉降槽曲線，對sk3 + 355斷面處隧道上方的煤氣管線的安全性進行了分析，得出了利用此施工方案施工不會造成此處煤氣管線破壞的結論。
  7. The effects of various structure parameters and fins arrangement of the three dimensional extended surface on heat transfer performance in the 3 - d ift have not been studied systematically

    特別是在三維內肋管肋形結構尺寸，肋排列形式等影響管內對流換熱特性因素的系統研究工作還有待于進一步的完善。
  8. The yarn architecture of three - dimensional ( 3 - d ) braided composites produced by the four - step 1 1 braiding technique and their effective elastic properties were studied in this dissertation with experimental investigation and a numerical method, respectively

    本文採用控制體積單元法與試驗觀察相結合的方法研究了三維編織復合材料的細觀結構，並採用數值計算方法分析了三維編織復合材料的彈性性能，具有一定的理論價值和實際工程意義。
  9. Product characteristic : vmate entire, function table model keyboard ; peleco " d p " agreement, baud rate 4, 800, peleco " p " agreement, baud rate 2400rj - 45 connection ; the three dimensional rocking bar may carry in the accuracy control keyboard to quick ball each kind of speed the pressed key to be allowed to choose the camera the address ; transfer ball machine function menu ; processing pre - placed position ; opens and closes the small aperture ; focal variation and focusing lens ; the start stops automatic and the random scanning function

    三維搖桿可對快球的各種速度進行精確控制鍵盤上的按鍵可以選擇攝像機的地址碼調用球機功能菜單處理預置位打開及關小光圈變焦及聚焦鏡頭啟動停止自動及隨機掃描功能
  10. Fluorescence power transfer function, three - dimensional point spread function ( 3d - psf ) and three - dimensional optical transfer function ( sd - otf ) for the various fluorescent wavelength of the two kinds of fluorescence confocal scanning microscopy are calculated in this paper by using fourier imaging theory. the results show that the fluorescent wavelength has influence on imaging property of confocal microscopy such as spatial cut - off frequency, resolution and 3d - otf. there is a different missing - cone in the 3 - d space of otf when the ratio of excitation wavelength to fluorescent wavelength decreases

    本文在sheppard和gumin等人的理論基礎上，利用fourier光學成像理論，討論了不同熒光波長對單光子和雙光子共焦顯微鏡成像特性的影響，導出了單光子和雙光子共焦顯微鏡的熒光功率傳輸函數、三維脈沖響應函數和三維光學傳遞函數，得到了它們在不同激發波長與熒光波長比值時具體的表達式，並且通過數值計算，得到了它們的曲線圖，結果表明：隨著激發波長與熒光波長比值的增加，焦斑的橫向分佈和縱向分佈變窄，橫向解析度和縱向解析度提高，系統的成像效果變好，當激發波長與熒光波長的比值下降到一定程度時，可以看到不同程度的失錐現象。
  11. Objective : the goal was to develop an interactive three - dimensional ( 3 - d ) computerized anatomic model of the skull base for teaching microneurosurgical anatomy and for operative planning

    目的：建立計算機化的3d顱底解剖模型，用於微創神經外科解剖學的教學以及手術前計劃的制定。
  12. If the magnetic field is strong enough, the number of bound states of d ~ centers is countless in three dimensional material, however in two dimensions only four bound states are found

    如果磁場足夠大，三維體材料中d ~ -中心有無窮多個束縛態，而二維d ~ -中心則只有四個束縛態存在。
  13. In the end, in view of the fact that boussinesq - type equations and the mild slope equations are deduced from different hypothesis conditions and behave differently in simulation of wave propagation, the numerical results of wave propagation effected by strong non - linearity are given by the nonlinear three - dimensional mathematical model which was established for the calculation of 3 - d wave particle velocity and wave pressure and suitable to small size waters of arbitrarily varying depth

    最後，鑒于boussinesq型方程和緩坡方程是在不同的假設條件下推導而來，應用於描述近岸水域波浪的傳播變形時具有不同的特點。本報告根據作者所建立的可以對任意水深點流場與波動凈壓力場進行求解、適宜水深任意變化水域非線性波傳播的數學模型，提供了在較強非線性作用下波浪傳播的數值模擬結果。
  14. This paper shows the research on this issue with ansys 6. 0, in which two - ( 2 - d ) and three - dimensional ( 3 - d ) analysis on 8e160 diesel engine ' s piston assembly was carried out

    本文就是在這個領域內所進行的一部分探索，開展了內燃機活塞組與缸套耦合模型的二維、三維數值模擬研究。
  15. Made of composite three - dimensional, helix, hollow and silicon - filled fibers with good elasticity and permeability and free from glue material ; easy to handle and applicable for pillow core, sofa, cushion, toys as well as winter suits ; available in 4 grades as a, b, c and d according to customers with different requirements

    Pp棉：使用復合三維螺旋捲曲中空加硅纖維製成，彈性好、透氣性強、不含膠漿，填充方便。適用於枕芯、沙發、靠墊、玩具、防寒服等。分為a 、 b 、 c 、 d四個品質等級，客戶可根據產品的需求，選擇適合自己的類型。
  16. Using latest visual software idl ( interactive data language ) and combining trigrid function with triangulate function in idl, regular network terrain model and 3 - d shallow and deep sliding surface model of zhafangping landslide body based on delaunay triangular network is set up. it makes the sliding surface turn from " recessiveness " into " dominance ", and gets numerous different three - dimensional cubic chart, contour topographic map, the combine model of terrain model and contour topo - graphic map. and every visual model has analysed and compared in detail

    利用可視化軟體idl中的triangulate函數和trigrid函數相結合，建立了基於delaunay三角網的榨坊坪滑坡體規則格網地面模型和淺層、深層滑動面三維可視化模型，實現了該滑坡體的三維模擬與再現，使滑動面由「隱性」變為了「顯性」 ，且獲得了眾多不同角度的三維立體圖、等高線地形圖和地面模型與等高線地形圖的組合圖等，並對各可視化模型進行了詳細地分析與比較。
  17. As the legged system has a similar dynamics to that of three - dimensional inverted pendulum mode, whose supporting point is equivalently located at the zmp, what is more, there is dynamical relationship between the zero moment point ( zmp ) and the center of gravity ( cog ), so this paper proposed the method that controls the cog of the whole humanoid body system in real - time through the 3 - d inverted pendulum based on variable zmp : first, the irregular terrain analyzed and described, the author proposed an usual obstacles - spanning method, based on the position and the shape of obstacles, the author programmed the smooth trajectory of anklebones

    由於機器人的腿系統和三維倒立擺模型有著相似的動力學特徵，模型的支撐點就是機器人的零力矩點zmp ，另外零力矩點zmp和重心cog之間存在著動態關系，本文採用基於可變zmp的三維倒立擺動力學原理來對類人猿機器人進行質心軌跡生成。首先，通過對復雜地況進行分類統一描述，提出了一套通用的越障軌跡規劃方法，結合復雜地況下障礙的位置和形狀，規劃了機器人連續的踝關節軌跡。
  18. In this paper, a generalized finite - element - based cross - sectional analysis for nonhomogenous, initially curved and twisted, anisotropic grp blades is formulated from geometrically nonlinear, three - dimensional ( 3 - d ) elasticity

    摘要針對非均勻的、初始彎扭的各向異性玻璃鋼葉片，由幾何非線性的3維彈性理論導出了常規的有限單元橫截面分析公式。
  19. In this article, two - and three - dimensional ( 2 - d and 3 - d ) ocdma system are researched

    本文主要圍繞多維ocdma系統展開研究。
  20. Using the solution of three - dimensional fem iteration method makes 3 - d temperature field calculation of water pipe cooling in high rccd more precise. 4

    採用三維有限元迭代解法，能夠精確地實現有冷卻水管高碾壓混凝土壩溫度場的三維模擬計算。
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