火箭發射管 的英文怎麼說
中文拼音 [huǒjiànfāshèguǎn]
火箭發射管
英文
rocket tube-
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Nasa says it ' s prepared to launch shuttle discovery saturday despite some concern that flying foam may harm the space shuttle
美航天航空局說他們準備于周六發射探測號火箭，盡管有些人擔心空中浮塵可能會危害到它。Know the different types of artillery and how to employ them effectively. mortars, howitzers, and mlrs systems all have distinct characteristics and uses
了解各種火炮的性能並有效利用。迫擊炮，榴彈炮和多管火箭發射系統都有著截然不同的性能和效用。New developments in decision theory, artificial theory and dynamic analysis method are applied to evaluation the possible projects. the main contents in this paper are included as follows : first, has improved an format reasoning method based on multiple attribute utility model and knowledgebase theory ; second, has proposed complex utility model by improving the theory of multiple attribute utility ; third, has presented a kind of weapon intelligent decision support system, based on the complex utility model and developed with com / dcom criterion ; forth, this paper also has build the dynamic simulation model for long - rang multiple tube rocket launcher system, and the tire dynamic model has applied in the rocket launcher system dynamic simulation model ; fifth, through building the rocket - launcher contact model, this paper has analyzed the dynamic forces between the rocket and launcher ; finally, this paper has build the evaluation model of the project about improving existing rocket launcher to the launcher that using canister, and get the conclusion through using the widss. the studies in this paper not only proposed scientific warrant to the choice of projects in this pre - studied national defense task about improving existing rocket launcher to the launcher that using canister, but also can give other studied tasks with decision supported
主要內容包括：在總結決策分析與專家系統規則庫技術的基礎上，提出了融決策分析與專家系統規則庫技術於一體的形式化推理機制，該機制能有效的將定量計算和定性知識融為一體，將規范的決策分析解題過程與專家系統特有的演化推理方法有機結合起來；在多屬性效用理論的基礎上，建立了一般形式的復式效用模型，並實用化了全相關乘式效用模型，提供了較完善的通用建模、分析和解釋功能：引入了com dcom組件技術，開發了基於組件的widss系統，該系統基於形式化推理機制，易於擴展，能夠面向多種決策問題，具有較強的通用性；建立了遠程多管火箭炮全炮動力學模擬模型，將充氣輪胎動力學模型、輪胎和路面的相互作用模型運用於多管火箭炮動力學模擬計算中；利用碰撞接觸理論，對火箭彈在定向器管內的運動受力情況進行了模擬計算；建立了遠程多管火箭炮箱式發射改進方案模型，並利用動力學模擬計算結果在widss系統中進行了方案性能評估。Abstract : this paper briefly presents th e application of advanced brazing techniques for a larye number of assemblies of space vehicles, such as thrust chamber and turbine rotor of launch rock et engine, titanium tube of satellite, attitude control engine injector and wave guide component of satell ite, reflector, tube and honeycomb panel of manned spacecraft, main engine nozzl e and preburner of space shuttle as well as the pipeline systems of space statio n
文摘:簡略地介紹了先進釬焊技術在航天器部件，例如運載火箭發動機的推力室和渦輪轉子、人造衛星的鈦導管、姿控發動機噴注器和波導器件、載人飛船的反射器、導管和蜂窩壁板、航天飛機的主發動機噴管和預燃室以及空間站的管路系統等的廣泛應用情況。The weapons are tow missile, two 7. 62mm or one 12. 7mm fn gun pod, one 70mm 7 rounds or 12 rounds pod
武器包括「陶」式反坦克導彈，裝兩挺7 . 62毫米或一挺12 . 7毫米機槍的fn武器吊艙和70毫米火箭的7管或12管發射巢。Despite a couple of hezbollah rocket launches, the cease - fire is holding in israel and lebanon
盡管黎巴嫩真主黨發射過兩枚火箭，黎以之間還是保持停火狀態。Evaluation method of multiple launcher rocket system based on uniform approximation
用一致逼近技術評價多管火箭炮發射系統的方法It is shown that when the exit area of secondary nozzle and the fuel / oxidizer ratio is fixed, the increase of mass flow rate of secondary flow lead to the decrease of velocity of mixed flow, and increase of total mass flow rate. the synthetical result of these two phenomenon cause the increase of thrust of rocket ejector, but the increasing magnitude is relatively small, indicating that these is no necessary to claim large bypass ratio in rocket ejector design. in the comparison between two configurations, the typical one has better performance, indicating the importance of pressure ratio
結果表明：在固定二次噴管出口面積和氧燃比的條件下，二次流（引射空氣流）流量的增加引起混合氣體出口速度的下降和總流量的增加，二者綜合作用使發動機推力增加，但增幅不大，表明在設計發動機結構和工作參數時，不必過分追求大的引射系數；兩種結構的性能對比分析表明了增壓比對引射火箭性能的提高具有重要意義；對引射火箭的熱力循環分析同樣表明，增壓比對于提高發動機性能非常關鍵。But the qassam brigades have shown they can launch a rocket and make it fly farther than ever, even with the army not far away
然而卡桑旅昭示出他們能夠發射火箭彈，並且能使其飛得更遠，盡管以軍相隔不遠。The first need is a ceasefire, which requires hamas and other fighters to stop firing the rockets that rain down on israelis living near gaza ( though it is worth noting that these rarely kill people ? some 13 in seven years ? whereas israeli attacks have killed hundreds of palestinian civilians as well as fighters in gaza over the same period : at least 70, including 30 - odd civilians, this january alone )
首先需要的就是停火，首先，這需要哈馬斯和其他好戰分子停止向住在加沙附近的以色列人頻繁發射火箭彈（值得注意的是，盡管這些襲擊很少殺死人過去7年只要13人喪生然而，同一時期，以色列的攻擊已經殺死了數百名加沙的巴勒斯坦平民和戰斗人員：僅僅今年1月，就有至少70人，包括至少30名平民） 。分享友人