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rocket
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rocket
(名) 飞弹, 火箭; 火箭式投射器; 火箭发动机; 火箭弹
 
(动) 向前急冲; 迅速上升; 飞快行进; 猛涨; 用火箭运载; 用火箭轰击

Wikipedia 维基中文 免费百科全书Download this dictionary
火箭
推进技术
火箭推进是一种精密的结构，它的原理主要是力学、热力学，以及其它有关科学之运用，诸如电学等。火箭跟一般的飞机主要的不同点在于：飞机只能在大气层内飞翔，但是火箭可以在外层空间工作，因为它不需要利用空气便能够燃烧推进。

火箭推力的获得，乃由高速喷出物反作用而生成。其原理与花园中用橡皮管喷水时，橡皮管会向后退，以及枪向后座的原理一样。

火箭的燃料经过燃烧室燃烧以后，会产生高温高压的气体，之后再经过一个喷嘴而加速，并排气到外界。这些气体便是推动火箭的原动力。


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本文章的材料选自维基百科(R), 并有 GNU 免费文件许
French-Chinese GBKDownload this dictionary
rocket
rocket
m.
火箭

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