火箭发动机

The ideal rocket represents the maximum performance condition that could be attained if it were not for real-world factors and other approximations that lead to performance reductions in actual solid rocket motors.

理想的火箭，代表最高性能的条件是可以实现的如果不是真实世界的因素和其他的逼近，导致性能降低，在实际固体火箭发动机。

This paper introduces the piezoelectricity quartz thrust and thrust vector sensor in detail.The mathematical model of the sensor force system is established.

火箭发动机的推力偏心对火箭和导弹的飞行性能带来不良的影响，它使火箭弹的散布增大，精度下降，可导致导弹飞行中掉弹[1]。

Hybrid rocket motors keep the features of low cost,high reliability,and no hazards.In recent years, there has been a resurgence of interest in the development of hybrid rocket engines for advanced launch vehicle applications.

由于混合火箭发动机具有高安全性、高可靠性和低成本等突出优点，最近几年又重新成为了火箭推进技术的重要发展方向之一，具有广泛的应用前景。

Contains the source of power piston engine, turboprop engines, jet engines, turbofan engine, or rocket engines and so on.

动力的来源包含活塞发动机、涡轮螺旋桨发动机、喷射发动机、涡轮风扇发动机或火箭发动机等等。

Unpiloted and looking rather like a large, fat fighter aeroplane , it is launched from a converted Boeing 747. Having released the upper stage at about one half satellite speed, the rocket-powered lower stage glides back to base and lands

X-34无人驾驶，外观更像一个庞大的战斗机，它从一个经过改造的波音747飞机上发射，当以约为卫星的一半速度释放上部一级火箭后，采用火箭发动机驱动的下部一级火箭就滑降回基地并着陆。

The second stage utilises a YF-24 rocket motor consisting of one 75-ton thrust YF-22 motor and a YF-23F swivelling venire motor with four 4.8-ton thrust chambers burning N2O4/UDMH.

第二级采用一台YF-24火箭发动机由一台75吨推力YF-22发动机和四台4.8吨推力的YF-23F发动机所组成，燃烧N2O4/UDMH推进剂。

The engine of cryogenic liquid rocket is required for fully precooling by natural circulation before launching, and the return flow location of the circulation loop plays an important part in field distribution of tank.

低温液体火箭射前需要采用自然循环方式对火箭发动机进行充分预冷，循环预冷管路的回流口位置是影响液氧贮箱内部场分布的重要因素。

Therefore two-chamber single-thrust rocket motor structure was put forward.

使用增加发动机药量的方法，提高一室一推的火箭发动机推力时，通气参量过大直接影响发动机的燃烧性能。

The numerical results show that rocket engine plasma assisted combustion can increase active intermediate in chemical reaction,improve chemical reaction speed ,rise burning temperatu.

计算结果表明，火箭发动机等离子体助燃可增加化学反应过程中的活性中间体，提高化学反应速率，提高燃气的燃烧温度，火箭发动机助燃效果非常明显。

Then, this system was applied to analyze the influence of interfering factors towards the parameters of LRE for monopropellant (H_2O_2) and bipropellant (N_2O_4/UDMH) system, which include the effect of upstream pressure of the tank and the diameter of the pipelines on the thrust. Thus, the variety of main parameters such as thrust, impulse, and chamber pressure were obtained at rated condition.

本文还以MATLAB软件作为设计平台，使用M文件编写了挤压式液体火箭发动机的静态系统仿真程序，分别针对单组元(H_2O_2)和双组元(N_2O_4／UDMH)推进系统进行了干扰因素对发动机参数的影响分析，包括贮箱上游压力以及管路直径对发动机推力等参数的影响。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。