查询词典 bipropellant

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

Fuel vaporization determined the decomposition rates of bipropellant gas phase of MMH.

以蒸发作为燃烧速率控制过程，由MMH的分解蒸发速率来控制。

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。

Startup process timing analysis of liquid bipropellant pressure-fed propulsion system;2. Implementation of Parallel Extending Memory Based on Timing for AT89C2051;3. Combining with the timing of strip elements spraying status calculation and setup values outputting in on-line feed-forward control,the timing of calculation and outpu.

结合国内某1450mm热轧带钢厂层流冷却系统的改造，介绍了过程级数学模型子系统的组成，主要包括进程的划分及激活逻辑、共享数据区的分类及数据流程，并结合实际在线前馈控制过程中样本集管组态计算和下发的时序，以及自适应后计算时序及自适应系数的数据流程，说明了数学模型子系统构成机制的合理性和运行结果的有效性。

Liquid propellants ; density specific impulse ; monopropellant ; bipropellant ; atomic propellant

液体推进剂；密度比冲；单组元推进剂；双组元推进剂；原子推进剂

This engine complement includes sixteen 25-pound thrust engines, eight 100-pound thrust bipropellant engines and a 7,500-pound thrust Orion Main Engine.

但是如果一切能如期进行，这个太空舱将会在2014年开始把宇航员带到国际空间站。

A Computer program of the hot starting and shutdown transients of a simple pressurized liquid bipropellant rocket engine is given,based upon the idea and basic equations provided by W.T.Webber etal.and mainly applying priem's combnstion model and feeding system distribution para- meter model.The hot starting and shutdown transients are calculated on 441B-Ⅲ digital computer and the elementary results arc obtained.

本文依据 W.T.Webber 等人提供的思路和基本方程，基本采用了 Priem 的燃烧模型和管路系统分布参数模型，为简单的挤压式双元液体推进剂火箭发动机热启动——关车瞬变工作过程编写了计算机程序，并在441B—Ⅲ型电子计算机上进行了计算，得出了初步的结果。

At present, electric propulsion technology has been widely applied in space flight missions and ascendant performance of electric thrusters makes them a substitution of traditional chemical propulsion system like monopropellant and bipropellant motors gradually.

中文题名电弧喷射推力器数值模拟与实验研究副题名外文题名 Numerical simulation and experimental study on arcjet thrusters 论文作者汤海滨导师刘宇教授学科专业航空宇航推进理论与工程研究领域\研究方向学位级别博士学位授予单位北京航空航天大学学位授予日期2002 论文页码总数134页关键词电弧喷射推力器火箭发动机电推进推力器馆藏号BSLW /2002 /V439 /3 目前，电推进装置已广泛地用于空间飞行任务，优越的性能使其正在逐步取代单、双组元等传统的化学推进系统。

In cooperation with the serial NSPO sounding rocket programs and application of the research results of the Institute of Aeronautics and Astronautics, National Cheng Kung University in the current proposal, we propose a series of Indigenous Propulsion Experiment payload Onboard Sounding Rockets, including: hydrazine monopropellant, hydrogen peroxide monopropellant, micro-propulsion and bipropellant subsystem. In the first stage of this multiple-year project, in two years (2005/4/1~2006/12/31) with two phases (phase I: 2005/1/1~2005/6/30 and phase II: 2005/7/1~2006/12/31) we will be compliant with the NSPO sounding rocket launch schedule of 2006 and develop the hydrazine thruster system onboard the sounding rocket as the payload to verify the key techniques and the thruster system developed.

本计画第一阶段预计以两年时间(民国94年4月1日起至95年12月31日止)分两期(第一期自民国94年4月1日起至94年9月30日止，第二期自民国94年10月1日起至民国95年12月31日止)配合NSPO的民国95年的探空火箭发射规划时程，发展联胺单基推进器系统做为探空火箭酬载，除了验证自主发展的推进器系统与关键技术外，并进行高空实验以进一步模拟测试该系统在高空环境与微重力状态的性能特性。

In cooperation with the serial NSPO sounding rocket programs and application of the research results of the Institute of Aeronautics and Astronautics, National Cheng Kung University in the current proposal, we propose a series of Indigenous Propulsion Experiment payload Onboard Sounding Rockets, including: hydrazine monopropellant, hydrogen peroxide monopropellant, micro-propulsion and bipropellant subsystem.

配合NSPO推动的系列探空火箭发射计画，利用国立成功大学航太系教授过去多年研发成果，本计画拟规划一系列探空火箭酬载进行卫星推进控制系统实验与高空测试，包括：联胺单基推进、过氧化氢单基推进、微推进(micro-propulsion)、双基推进等系统，以建立自主关键技术之发展。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了