螺旋模型 的英文怎麼說

中文拼音 [luóxuánmóxíng]
螺旋模型 英文
helix model
  • 螺 : 1. [動物學] （軟體動物） spiral shell; snail; conch 2. （螺旋形的指紋） whorl （in fingerprint）
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 螺旋 : 1 （具有螺紋的圓柱體 屬于斜面類的簡單機械） corkscrewspin; screw; spiral; helix 2 （螺旋現象;尾旋...
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. Code for propeller cavitation tests in uniform flow carried out in cavitation tunnel

    空泡水筒均流中螺旋槳模型試驗規程
  2. The advantage and disadvantage of measurement of propeller - induced pressure by using different equipment is discussed. the method to obtain self - propulsion point for full scale in depressurized towing tank is studied. the measurements of pressure of two propeller models are carried out, the results of the measurement agree with those obtained by cavitation tunnel very well, which proves this measurement is successful, and the theoretical prediction is verified too

    比較了不同測試設備用於螺旋槳脈動壓力測試的優缺點，探討了在減壓拖曳水池中實現實船自航點的方法，並進行了兩只螺旋槳模型的脈動壓力測試，經與空泡水洞中脈動壓力的測試結果進行比較，說明該項測試是成功的，同時也對脈動壓力的理論預報結果做了驗證。
  3. Typical examples include common elements such as oxygen, helium and the relative new carbon - 60 ; the anaesthetic gases such as nitrous oxide lathing gas and ether, urea - the first man - made organic compound, consumer products such as adhesives and the sugar substituted aspartame ; dna the coil of life ; and the fiascos in the proclaimed discoveries of cold fusion and memory effect of water

    主要內容包括：氧、氦、笑氣、乙醚、碳60等元素及化合物的發現， 11 .第一個有機化合物的合成，各類日用黏貼膠的制備，代糖aspartame的發現， dna雙螺旋結構模型的釐定以及冷核聚變和水分子記憶功能兩項發現的鬧劇。
  4. By applying the th model theory to analyzing the cases of developed countries that mentioned in chapter 4, chapter 6 finds out the block gene and tendon compages that consists of the university - government - industry th. furthermore, it gives the pheno - types as some external expressions of the genotypes and the family - tree diagram constituted by these phenotypes. after a transition, it illuminates the scientometric, the webometric and the triple helix algorithm and their application

    第六章運用th模型理論對第四章提供的案例挖掘梳理后，發現並給出了：構成大學?政府?產業三重螺旋體的完整板塊配基和鍵鏈組合，作為「基因型」外在表達的一些「現象型」屬類以及由它們所構成的圖式譜系。
  5. In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane

    本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題，具體成果和創新點如下1 、根據流體力學理論，建立了螺旋槳推進器的動態模型，它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量，以電機施加轉矩為輸入，螺旋槳推力t和轉矩q為輸出。
  6. A physical model for rf planar spiral micro - inductors

    平面螺旋微電感的物理模型
  7. 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線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線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.針對這些特點，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線輪廓復雜，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，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線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，研究了針對該類型工件的片銑刀直徑選擇、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線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，對其他相似類型零件的加工亦具有參考意義
  8. The produce process contains : fiberglass process, foam process, balsa process and layer press board process etc. the product range among : emulate slide flight, engine motor flight, electromotion flight, eject flight, airscrew and the accessory of various flight model

    翔華航模的生產工藝現有玻璃纖維製作，泡沫塑料製作， balsa製作，層壓板製作。產品包括像真滑翔飛機，引擎動力飛機，電動飛機，噴射飛機以及螺旋槳和各種飛機模型配件。
  9. In this thesis, the technology of visual fictitous design was used to design the level exchanged direction and double direction plough. first, the traction force formula of cylindrical plough face based on the prior study was deduced, and the forces of the solid model of circumrotatory pin was calculated, and visual dummy design technology was applied to analyse the force of circumrotatory pin and the parameter of pin

    其次在前人研究的基礎上推導出圓柱型犁體曲面的牽引阻力公式；根據該公式計算出旋轉銷三維實體模型所受的力，根據該力運用可視化虛擬設計技術對模型進行受力分析，對旋轉銷的參數進行合理設計；根據牽引阻力公式計算出安全螺栓所受的力，根據該力運用虛擬設計技術對安全機構進行設計。
  10. The paper build a model of electric ship power system, include the model of motor and generator derived from simulink, the model of propeller build by the author, the model of load flow. after the process of model simulation, the dynamic curve of electrical ship were drawn out

    應用simulink已有的電機模塊，再自行建立螺旋槳的simulink模型，結合數據庫模塊和用戶自定義的s函數模塊，建立了電力推進船的船?機?漿匹配模型，並進行了模擬計算和動態特性模擬，並進行了模擬結果分析。
  11. In the second part, firstly, the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present, based on the general propeller lifting - surface theory, potential flow theory and green theorem. then, theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present, based on the finite basic solution method, the unsteady vortex lattice method and hess - smith method

    在理論計算部分，本文首先基於常規螺旋槳升力面理論、勢流理論和格林定理建立了定常和非定常狀態下全方向推進器水動力性能計算的數學模型，然後利用有限基本解法、非定常渦格法和赫斯?史密斯方法對全方向推進器定常和非定常狀態下的數學模型進行了數值離散，接下來針對前面所設計的全方位推進器進行了數值預報。
  12. The function of stone artistic splice complete through to established basic design or source material warehouse with the help of others graph process software. besides author come up with a new program or machine method in accordance with stagger in the thicknes and vertical length at the stone sticking execution, i. e ensure the accuracy in measurement to approach subsection by space spiral line, the data used directly by numerical control machine. finally machined the stone become a spiral line columned surface arc slab

    此外，針對旋轉樓梯扶手石材貼片施工時所出現的厚度和垂直方向易產生較大錯邊的問題，提出了一種新的建模方案和加工措施，即在保證測量精度的基礎上，分段以空間螺旋線逼近，經過計算機處理后的參數直接可供數控加工使用，最後把石材貼片加工成螺旋線型的柱面弧形扳。
  13. Based on the experiences of the developed countries and the th theory brought forward by the forthgoers, the main contributing conclusion of the dissertation includes : firstly, it elaborates the inner structure and the pedigree within the th of university - industry - government. secondly, it points out the disfigurements and flaws in chinese university - industry - government relationship and then puts forward the mission and countermeasures to cope with these problems. last by not least, it finishes a quantitative analysis of chinese th model with the scientometric, the webometric and the triple helix algorithm and then according to the arithmetic result, it compares the chinese th with some other typical countries " and finally draws some valuable conclusions

    結合發達國家區域的實踐經驗與前人已有的理論工作，本文深入研究了網路時代的三方合作主題，主要貢獻有：給出大學?產業?政府三重螺旋體的內部結構和圖式譜系；指出國內「產學研」缺陷與紕漏，明晰了「官產學」的應對與使命；最後運用th演算法和科學計量、網路計量手段實現了一個有關中國三重螺旋模型的定量分析，並與其他典型的國家地區三重螺旋作出比較，得到若干有價值的結論。
  14. A similar - helix model of drillpipes buckling

    鉆柱失穩的準螺旋模型研究
  15. Multiple coiling model

    多級螺旋模型
  16. Why would a software tester like the spiral model better than the others

    眾多軟體開發模型中，為什麼一個軟體測試人員更喜歡「螺旋模型」 ？
  17. Waterfall and spiral methodologies set the context and deliverable definition at the start of a project

    瀑布和螺旋模型在項目開始時聲明前後關系和可交付定義。
  18. Based on the analysis of innovation system ' s principle, the compound triple helix model of innovation system was proposed, and its dynamics was depicted

    在此基礎上提出了描述創新系統的復合三鏈螺旋模型，對創新系統動力學進行了定量化描述。
  19. The spiral model is a software development model combining elements of both design and prototyping - in - stages, so it ' s a healthy mix of top - down and bottom - up concepts

    譯文：螺旋模型是結合了設計和階段與原型開發原理的一種軟體開發模型，因此是一種從上至下和自下而上概念的良好的結合。
  20. But, both of them cannot support the design with great complexity, and cannot meet the requirement of the design innovation. this paper presented the concept of incremental virtual p1 ' ototyping ( ivp ), and described evolving process of the virtual prototype by a tree - like model named virtual prototyping tree

    針對上述問題，本文給出了漸進式虛擬原型的概念，用原型樹模型刻畫漸進式虛擬原型的構成方式和進化過程，並在螺旋模型的基礎上，提出了基於漸進式虛擬原型的并行設計方法。
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