螺轉線 的英文怎麼說

中文拼音 [luózhuǎnxiàn]
螺轉線 英文
spiral
  • : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
  • : 轉構詞成分。
  • : 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...
  1. Jt91 - 200 artillety gyro altazimuth is a fix instument which can research the grid north automatically and determine grid north azimuth at any direction. it works by making use of the physical features of gyro and influences of earth rotation. the equipment of this instument will play a important role in topographic clement

    Jt91 - 200型炮兵陀經緯儀是利用陀本身的物理特性和地球自的影響,實現自動尋找其北方向和測定任一方向的真北方位角的定向儀器。該型炮兵陀經緯儀的裝備使用,對我軍炮兵測地分隊的測地保障發展將產生重大影響。
  2. 3 screwdriver clockwise circumgyrate 90plastic cap slot, swiftly complete connecting and nip more line

    3用絲刀在塑料帽槽內順時針旋90即可完成接和剪斷多餘
  3. 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,建立了旋槳推進器的動態模型,它以旋槳來流速度v _ p和旋槳速n為狀態變量,以電機施加矩為輸入,旋槳推力t和矩q為輸出。
  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)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
  5. The convert and evolution course of periodical response, quasi - periodical response, double - periodical bifurcation, chaos of the system response is analyzed. ( 3 ). it is deduced that the general differential equation of bending - torsional - pendular coupling vibration about rotor with the gyroscopic moment

    ( 3 )推導了一般意義下,考慮陀力矩的單盤子彎扭擺耦合振動非性方程,基於該方程,推出了不平衡子和碰摩子的非性彎扭擺耦合振動方程。
  6. This paper presents the basic construction and movement rules of the coordinator gyrorotor with reticle of archimedes spiral reticule pattern, also, it explains the principles and methods of dynamical balance to damp the vibration and forced nutation

    闡述了具有阿基米德圖案的位標器的基本原理及其運動規律,並說明這種陀子的振動與繞動的平衡原理與方法。
  7. The bulk of the mass is spread out, forcing stars to trace a spirograph - like rosette : an ellipse that does not close on itself but gets offset each time the star completes one revolution [ see box at right ]

    整體質量分散開來,迫使恆星運行方式如旋繪圖盤所畫出的花瓣狀:那不是每圈都會封閉起來的橢圓,恆星繞行一周后,軌道並不接合便又重新開始下一周的運動(見右方整理軌道秩序) 。
  8. In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented

    本文借鑒鋼框架節點構造,設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點,包括常規栓焊( wfp )節點、翼緣全栓連接( bfp )節點、雙t板連接( dst )節點以及加勁端板連接( sep )節點,進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究,比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵,主要結論有: 1 、節點的位移滯回曲角滯回曲為塊型分佈,沒有或略有捏攏現象,耗能能力強; 2 、軸壓比對節點滯回曲有顯著影響,全部節點都有顯著的剛度退化; 3 、位移與角骨架曲在峰值荷載後有較長的水平或下降段,具有良好的延性性能; 4 、從整體抗震性能上看,翼緣全栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點,可在實際工程中加以推廣。
  9. A printer that forms dot matrix characters by means of linear, ridged print hammers that impact paper and ribbon against a helical ridge on a rotating cylinder

    一種採用性脊紋列印錘的點陣字元印表機,列印時列印錘撞擊緊貼在旋脊紋旋圓筒上的紙和色帶。
  10. The lifting - line and lifting - surface design method, the harmonic analysis method based on the panel method, new section design ways, the effective operating curves are integrated into a whole design system of the unsteady propeller, the design system is effective and reliable by the design example, the model test and the application to the full scale ship

    本文把升力和升力面設計方法、基於面元法預報旋槳非定常性能的諧調分析方法,新剖面設計方法、有效運計算方法組合為一套完整的非均勻流場中旋槳設計計算系統,經實例設計和模型試驗及實船的應用,該設計系統是可靠且有效的。
  11. Revolving bolts for contact wire clamp for overhead equipment ; revolving bolts with thread

    架空設備的接觸導用旋栓.帶紋的旋
  12. Information is collected through the use of special rotating antennae found on the two strands that form the helix and located where each strand intersects with its four ladders

    通過使用在二條里發現的特別旋收集信息,二條形成旋狀用它的四個階梯固定在每條橫斷面上。
  13. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲管道流動和換熱特性的研究成果的基礎上,以旋正交曲坐標系統下的多參數旋旋管道中的對流傳熱為物理模型,通過攝動方法和有限體積法,首次對各種截面(圓截面、橢圓截面、環形截面、矩形截面)旋管道內充分發展流動的流動結構和傳熱特性(包括耦合對流傳熱特性)以及旋管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析,詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。
  14. The submarine noise detected by sonar consists of two parts : propeller - generated hydro - dynamical noise, which can be greatly reduced by improving the submarine rear shape ; radiated noise from the submarine structure excited by the centrifugal forces ( moments ) of rotatory machine, which is more complicated and influenced by many factors

    聲納所探測的潛艇噪聲包括兩部分,一是旋槳運帶來的水動力噪聲,二是潛艇主機工作時產生的不平衡力和力矩引起潛艇結構振動,帶動流場振動從而輻射噪聲。通過改進潛艇尾部型設計,已將水動力噪聲降到比較低的程度,而結構噪聲則復雜得多,與許多因素有關。
  15. This paper presents a design method of propeller blade section operating in non - uniform flow field and an idea of equivalent operating curve with unchanged cavitations characteristic on blade section, the method for selecting the curve is set up

    摘要給出了非均勻流場中旋槳槳葉剖面的設計方法,提出了保持剖面空泡特徵不變的等效運的思想,並創建了等效運的確定方法。
  16. Screw and nut steering gear

    向器
  17. 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型的柱面弧形扳。
  18. Helical coil screw thread inserts : free running and screw locking metric series

    釘用紋墊片:空釘鎖緊
  19. Test method for mechanical torque rate of spiral coils of thermostat metal

    恆溫雙金屬制圈的機械扭率的試驗方法
  20. Helical coil screw thread inserts - free running and screw locking inchs series

    英制釘用紋墊片.空釘鎖定
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