推力

It showed that the influences from gyro zero-position,rocket thrust eccentricity,launch mode and downwash flow field caused by helicopter are evident.

分析结果认为导弹陀螺零位、发动机推力偏心、导弹发射方式、直升机旋翼下洗流场等因素的影响是显著的，特别是在这些因素的综合影响下，初始弹道将出现很大的偏离。

NS-07 new stabilizing suspension The suspension, with new structure and connected with international technology is divided into construction vehicle and highway vehicle.

NS-07新型平衡悬架与国际接轨、全新结构的悬架，解决了推力杆易损、桥壳易变形、桥壳焊缝开焊等问题，同时降低了整车自重，具有良好的平顺性和行驶稳定性。

And then, when I had made an opening sufficient for my head, I put in a dark lantern, all closed, closed, that no light shone out, and then I thrust in my head.

然后，当我做了我的头足够开放，我在一个黑暗的灯笼，全封闭，封闭的，没有光照耀出来，然后我在我的脑海推力。

The densities of each specific material vary greatly, but when used in explosives density can be changed in order to attain different magnitudes of thrust and brisance.

密度每个特定的物质改变很大，但是何时在炸药密度用能被改变为了要达到推力和爆炸威力的不同星等。

In this paper the transients are calculated and analysed by means of the numerical computation method for pulse operation,four-engine parallel operation and variable-thrust operation of the liquid bipropellant attitude control engine.

本文用数值计算的方法对双组元液体推进剂姿态控制发动机的脉冲工作，四机并联工作，变推力工作的瞬变过程作了计算分析。

Based on the mass models of the liquid propellamt engine thrust system, an approach has been presented for the optimization of the locality arrangement of the bipropellant attitude control engines.

在液体推进剂动力系统质量模型的基础上，针对采用双组元推进剂和挤压式输送系统的小推力空间飞行器姿控发动机，在控制总冲量和总冲量矩相同的情况下，对动力系统总质量最轻的姿控发动机最优布局方式进行了优化分

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。

In this paper, the thrust acceleration is analyzed, and then the nonlinear model of ballistic missile in the image is presented.

该文通过对导弹推力加速度的分析，提出了目标在像平面的非线性运动模型。

Firstly, the control of reentry phase and the model of RCS jets are presented. Then the flight control system is divided into two subsystems based on the time-scale separation principle. The fast states subsystem corresponds to the three body-axis angular rates, the slow states subsystem controls the angle-of-attack, sideslip angle and the rate of the bank angle about the velocity vector. Lastly, the proportional-plus-integral feedback is designed to increase the system robustness.

首先，分析了SRLV再入段的数学模型，并给出了反作用推力控制系统的控制模型；其次，将非线性动态逆方法与时标分离原则相结合，考虑飞行器姿态控制系统的外环角回路的慢变特性和内环角速度回路的快变特性，独立设计了两个回路的控制律；最后，为了增强系统的鲁棒性，分别在两个回路中引入了比例－积分反馈，有效地抑制了干扰力、力矩和非线性对消带来的逆误差。

So in this paper, the micro-turbofan engine, which has several ten kilogram thrust level, moderate difficulty, low pressure ratio and single rotor, is studied in three ways which contain overall aerodynamics arrangement analysis and structure feasibility research, optimizing of aerothermodynamics circulation, overall aerodynamics design ane flying performance simulation.

本文对于数十公斤推力量级的、工程技术难度适中的、低增压比的一种单叶轮微型涡扇发动机，进行了总体气动布局分析和结构可行性研究，热力循环优化设计，总体气动设计及飞行特性模拟这三个方面的研究。

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说，如果是/否的问题回答f可看的价值观念在许多最有限坐标，然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明：基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小，它既能去除奇异点，又能保持图像中目标的边缘不变性，具有很好的滤波效果。