箭道 的英文怎麼說

中文拼音 [jiàndào]
箭道 英文
trajectory
  • 箭 : 名詞（古代兵器） arrow
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  1. Unlike a rocket engine, the jet engine, as you know, is an " air breather "

    正如你們所知道的，這種噴氣發動機與火箭發動機不同：它是「空氣噴氣發動機」 。
  2. If francis, james, wells and scola can fill those needs ( and t - mac ' s balky back holds up ), the rockets just might be able to take the next step in their quest

    如果弗朗西斯，詹姆斯，韋爾斯，斯科拉能夠滿足這些需要（再加上麥迪拿出做老大的氣勢） ，火箭就能在他們的前進道路上更進一步。
  3. Rockets are important as thrust units for ballistic missiles.

    火箭作為彈道導彈的推力裝置很重要。
  4. All the rockets ever assembledthe fireworks skyrocket, the ballistic missile, the big research rocket, the newest space rockethave one thing in common.

    過去製成的所有火箭，不論是花炮，彈道導彈，巨大的科研火箭，還是最新的宇宙火箭，它們都有一個共同點。
  5. As we all known, the ballistic trajectory is a pilotless missile, which loads rocket engine and control system, these will drop the missile to the target along its ballistic

    眾所周知，彈道導彈是一種無人駕駛的飛行器，它裝有火箭發動機和控制系統，其目的是把導彈沿一定的彈道送到目標區。
  6. The delta-winged columbia, before reaching the orbit, jettisoned its dual booster rockets two minutes into flight.

    三角翼的哥倫比亞號航天飛機在進入軌道前，起飛兩分鐘就拋下其兩個助推火箭。
  7. Finally, when in orbit round the earth, the calculators calculate exactly when to fire the retro-rocket to effect re-entry.

    最後，在圍繞地球的軌道運行的時候，計算機會精確地計算出應該在什麼時候發射制動火箭以重返大氣層。
  8. Orbiting satellites were better at spying on enemies than wayward reconnaissance drones, and rockets destroyed targets more reliably than temperamental flying bombs did

    按軌道運動的衛星比難以駕馭且以監控為主的無人駕駛飛機更好地偵查敵情，而且相對於我行我素的自動導航導彈而言，用火箭來毀滅目標更具可靠性。
  9. Launched into earth ' s orbit by an ariane - 5 booster rocket from kourou, french guiana, in september 2003, smart - 1 used its ion engine to slowly raise its orbit over 14 months until the moon ' s gravity grabbed it

    2003年9月， 「智能1號」探測器從法國蓋亞那地區的庫魯基地由ariane五號火箭發射升空，在其離子引擎的推進下， 「智能1號」緩慢脫離運行軌道，在14個月後進入月球重力場。
  10. Trajectory characteristics of hypersonic waverider missile with rocket extended range

    火箭增程乘波外形導彈彈道特性研究
  11. Several streets were controlled by crowds of kikuyu youths armed with clubs, machetes, bows and arrows

    有幾條街道被基庫尤青年控制著，這些人配備著棍棒、彎刀以及弓箭。
  12. 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
  13. In this thesis, based on pershing ii surface to surface missile, a new kind of ballistic missile was designed with an additional rocket engine, which can be ignited twice. firstly, aerodynamic computational models of missile body and warhead which reentry with supersonic are built according to the task requirements ; secondly, the propulsion system model of missile is built whose first two stages are solid rocket engines and the third stage is liquid - solid combined rocket engine. the nozzle and the shape of the engine are designed to meet the needs of the populsion project ; thirdly, the trajectory model of the mass point is built and a wavy trajectory is designed & optimized ; finally, the ability of a missile ' s breaking through defence is analyzed

    以美國潘興導彈為原型，增加可兩次點火的末級發動機，改裝成具有跳躍能力的地地彈道導彈；首先，根據任務需求，建立了導彈的氣動模型，並建立了彈頭再入時高超聲速氣動模型；其次，建立了導彈推進系統模型，前兩級採用了固體火箭發動機，第三級採用了固?液組合火箭發動機，並在總體方案要求下，對發動機噴管和外形進行了設計；第三部分，建立了導彈質點彈道模型，設計了一條跳躍式彈道，並對跳躍式彈道進行了優化設計；最後，對導彈進行了突防能力分析，從分析的結果可以看出，跳躍式彈道的突防能力比常規的拋物線彈道要強。
  14. Abstract : solid propellant rocket motors are preferred for most ballistic missiles because they need simple maintenance and can be launched quickly. but the conventional thrust termination devices limit the depletion of every stage ' s grain and increase some extra - weight. an improved method for designing a multi - stage solid rocket based depleted shutdown was provided. in order to solve the problem of lack of thrust termination devices, a device to adjust the burnout angle will match the final burnout velocity and satisfy the desired range. the method can also limit the detection from anti - ballistic missile system

    文摘:由於維護簡單和發射快速，彈道導彈多用固體火箭發動機，但繁雜的推力終止裝置使各級裝藥不能耗盡並讓結構增重.提出了一種對基於耗盡關機多級固體火箭概念設計的改進方法，此方法滿足導彈系統主要的戰技要求.為解決無推力終止裝置的末速不準問題，可在末級發動機採用姿態調整裝置，對射角進行調整，配合末速以滿足射程要求.本方法還可抑制敵方反導探測
  15. Analysis of nozzleless solid propellant rocket motor performance

    無噴管固體火箭發動機內彈道計算
  16. In the meantime, lockheed martin managers are focusing on suborbital sounding rockets for hybrid motors

    在此同時，洛克希德馬丁公司的人員正致力研究供次軌道探空火箭使用的混合型馬達。
  17. Says rutan : “ i realized that i could build a suborbital rocket and i could fly myself into space ? that this was actually within my grasp

    魯丹說：我發現我能建造一個次軌道火箭，而且可以把自己送上太空這些都在我的能力范圍之內。
  18. Aisles must be separated from production areas by yellow painted lines, and there should be evacuation arrowheads marked on the aisles

    生產車間應以黃色通道線把生產區域與通道劃分出來，通道上還應標示疏散方向箭頭。
  19. Robert bigelow made millions in real estate, and he ' s spending a big chunk of it on trying to develop a module that ' s placed in orbit by a rocket then inflated to become a space hotel, a laboratory, or an astronaut training facility

    地產巨頭羅伯特?本傑羅打算斥巨資建造一個商用空間站，用火箭將一個原型艙送入地球軌道，之後膨脹為一個太空旅館、實驗室或是宇航員的訓練設施。
  20. In this paper, taking the rocket - assisted cartridge as the research object, systematic analyses and studies have been conducted on its ballistics characteristics. the whole ballistics is divided into three stages. different ballistics models and tested data processing methods have been determined according to the different characteristics on each stage

    本文以火箭增程彈為研究對象，在對其彈道特點進行系統的分析研究的基礎上，將全彈道分為三段，根據各段不同的特點導出了不同的彈道模型及測試數據處理方法。
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