multi stage rocket 中文意思是什麼
multi stage rocket
解釋
多級火箭-
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 -
Launched by a multi - stage ares 5 rocket, the spacecraft will go into orbit around the earth before docking with the international space station
太空船被多級阿瑞斯5號火箭發射，在泊入國際空間站之前將進入環地軌道。 -
The regularlty of the maximum velocity ' s change for multi - stage rocket of parallel type when the effective jet velocity of every stage increases in order
各級有效噴速依次遞增時並聯型多級火箭的最大速度值變化規律 -
The multi - stage rocket will jettison its aft stages when fuel in these stages is exhausted. this reduces the weight of the rocket and increases its speed
多級火箭會把燃料用完的尾一級火箭依次分離丟掉，以減輕火箭的重量及增加速度。 -
They can also " launch " a multi - stage rocket in slow motion and trace the successful development of launch vehicles and their payloads through videodisc programmes
觀眾可坐在回轉椅上，體驗和學習回轉儀的原理此外，觀眾可發射一枚多級式火箭。播放的影碟節目，則介紹運載火箭的成功發展。
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