火箭研究 的英文怎麼說
中文拼音 [huǒjiànyánjiū]
火箭研究
英文
rocketry-
A lot of engineering applications are carried out using our proposed method in this paper, such as thermal deformation measurement of a car lamp, analysis of the super low frequency harmonic vibration of a piezoelectric ceramic, dynamic mechanical behavior analysis of the ballistite material and so on
在前面所提出的理論基礎之上,本文對該方法在實際工程中的應用做出了大量的工作。本文利用時間序列法實現了汽車前燈配光鏡的熱變形檢測、壓電陶瓷片的超低頻振動分析以及火箭固體燃料的動態力學特性研究。At the same time, we colligated general math models and solving methods of reliability which are on using now. all of the models and methods have been compared and analysed
結構可靠性設計是固體火箭發動機研究工作中的重要內容。採用可靠性設計方法,可以確保發動機實現預定的質量指標。The 3 - d complex flowfield of rocket - missile with wings and empennages induced by the interaction between by base jet and the flow around the body has been numerically simulated. the main work is as follows : first, the gordon - mcbride program was developed to make it more friendly and efficient to the users
本文對帶彈翼/尾翼彈箭的三維噴流繞流復雜流場進行了數值模擬,其主要研究內容有:首先,對gordon - mcbride火箭程序作了改進,使改進后的軟體具有了非常友好的人機交互界面。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Study on detection for ignition system of rocket launcher
火箭炮發火系統檢測研究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The study of launching dynamics simulation for multiple rocket launcher
多管火箭炮系統發射動力學模擬研究Application study of plug nozzles for solid rocket motors
固體火箭發動機柔性接頭貯存老化可靠度研究John is a rocket scientist and is supposed to be smart
這個爸爸說: 「約翰是一個研究火箭的科學家,應該是很聰敏的。American physicist who developed and launched the first successful liquid - fueled rocket ( 1926 ) and invented numerous rocketry devices
高德,羅伯特?哈欽斯: ( 1882 - 1945 )美國物理學家,他研究並成功發射了第一顆液體燃料火箭( 1926年) ,發明了許多火箭器械。At the same forum, their papers revealed new rocket propulsion research, including work on hybrid systems that use a combination of propellants easier to handle and store than most propellants in wider use today
在本次論壇上,中國人的論文揭示了其新的火箭推進研究,其中包括一個混合系統,該系統使用了比今天廣泛應用的推進劑更容易貯藏和操作的多種推進劑組合。Space research activities are being aided through two sounding rocket lauching stations sponsored by the united nations.
對于空間研究活動的援助是通過聯合國支助的兩個探空火箭發射站進行的。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。Since supersonic phenomena seldom occur naturally, the first studies of supersonic flow and flight were related to artifacts, from shells to turbines, rockets, and aircraft.
由於自然界難得產生超音速現象,所以超音速流動和飛機的早期研究同炮彈,汽輪機,火箭和飛機等人工產品有關。Nasa fired three microsatellites into space wednesday to study the earth ' s magnetic fields, a week after an earlier launch was scrubbed. the 55 - pound st5 satellites, which will test new technologies for future science missions, were carried aloft from vandenberg air force base aboard a lockheed l - 1011 jet
在比原計劃推遲了一周之後,美國宇航局22日終于利用飛機加火箭的方式將3顆微型衛星送上了太空,開始了對地球磁場的研究工作。This paper relies on country 863 project " taking off levelly, two stage to orbit and transatmosphere flight vehicle system design ", research towed flight dynamics primarily, development for our country air launch technology of carrier rocket, offering the essential technological reserve
本論文以國家863項目「水平起飛兩級入軌跨大氣層飛行器總體設計」為依託,對牽引飛行動力學進行初步研究,為我國研究運載火箭空中發射技術提供必要的技術儲備。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。Research on the dynamic delay - time of hybrid igniting - device in the air is the basis of implementing it ' s the best trajectory and improving its max cannon - shot denseness
空中點火機構動態延期時間研究是底排? ?火箭復合增程彈實現其最佳增程彈道,提高最大射程密集度的重要環節。Di - on electrics service and products cover the power electric field including power generation transmission distribution, power equipment manufacturing, subway, utilites, ac dc metrology field as well, more than 500 units of electric power utilities and stations such as beijing power supply bureau, guangzhou power supply bureau, baosteel, three gorges power station and more manufacturers like siemens, abb, alstom, bicc, pirelii, toshiba and more and 30 units of metrology institutes in china like nim, tsinghua university and more are our user. di - on electric is sole and exclusive distributor for numerous famous companies like transinor doble norway, measurements international canada, ndb canada, schuetz germany, aan germany, dr. strauss germany and etc, taking care of their business and service in p. r. china including hongkong
絕大多數員工擁有本科和研究生以上學歷,在電力系統和計量系統工作多年,從事電力檢測帶電監測和計量測試儀器的技術服務和市場銷售工作長達10年以上,為約500多家電力工業系統的發供電部門如北京供電局,廣州電力局,深圳供電局,三峽電廠,廣州抽水蓄能電廠,田灣核電站等等,科研調試部門如廣東省電力試驗研究所,湖北省電力試驗研究所等等與設備生產廠如siemens , abb , alstom , toshiba等等提供了國際最先進可靠的測試技術和儀器設備為約30多家國內二級以上相關計量科研院所,包括國家計量院,清華大學,中國運載火箭研究院,空間技術研究院,航天二院,成飛,西飛和各省市計量院,電力試驗研究院所等提供了大量最先進可靠的計量檢測儀器。Rocket research has confirmed a strange fact which had already been suspected : there is a “ high - temperature belt ” in the atmosphere, with it center roughly thirty miles above the ground
火箭研究證實了早就懷疑的這樣一個奇異的事實:大氣層中有一個「高溫帶」 ,其中心在距地面約30英里高的地方。分享友人