查询词典 propellant

In this article,applications of nanophase materials in explosives are reviewed from many aspects,such as solid propellant, pyrotechnic, dynamite and so on.

从固体推进剂、发射药及烟火剂、炸药3个方面综述了纳米材料在火炸药领域中的应用，并提出了以后有待深入研究的几个问题。

This paper includes three parts:preparation of fullerene,the theoretical design and synthesis of novel pyrrolidine nitro-derivatives,the investigation of the application of fullerene and its derivatives in high energetic explosives and nitramine modified double base propellant.

本论文主要包括三部分：富勒烯原材料制备研究，新型硝基富勒烯吡咯烷衍生物的理论设计与合成研究，富勒烯及其衍生物在高能炸药和硝胺改性双基推进剂中的应用研究。

The radial acceleration forces can cause greater retention of the solid phase combustion products near the propellant surface.

径向加速度的力量可以造成更大的保留固相燃烧产物附近的推进剂表面。

An illustration of the concept of burning surface regression is given in Figure 1, for a section of a hollow cylindrical grain, with an inhibited outer surface ("inhibited" means that the propellant surface is protected from the heat of combustion and as such, burning does not occur).

一个例子的概念，燃烧表面的回归，是由于在图1 ，对于第一个空心圆柱粮食，与一抑制外表面（"抑制"是指推进剂表面是保护从燃烧热和作为，例如，燃烧不会发生）。

Calculating results show that variation of the propellant inlet pressure makes little impact on engine performance parameters, and the engine will transit to a new stable state. The parameter transition curves are smooth. When the engine thrust is adjusted in a small range within a short period, the parameter transition curves are also reposeful. But when the adjusting range becomes large, the parameter transition curves will fluctuate acutely. Thus, when large range adjusting is required, the time of adjusting should be lengthened or the adjusting should be divided into adequate steps.

计算结果表明，当发动机在某一个稳定工况工作时，发动机入口推进剂压强的变化对发动机性能参数的影响不大，发动机的参数都能比较平稳的过渡到一个新的稳定工况；当发动机在短时间内进行小范围的推力调节时，发动机参数的过渡过程的曲线也比较平稳，但是当在短时间内进行大范围推力调节时，参数的过渡过程的曲线振动比较剧烈，因此应当在进行大范围推力调节时，应当对调节时间进行适当延长，或者分级进行推力调节。

Because the gas at the end of a conical resonance tube can be heated to a higher temperature more quickly than at the end of a cylindrical resonance tube ,researchers pay more attention to the conical resonance tube in the engineering field of the gas-dynamic resonance ignition technique of liquid propellant rocket engine.

在液体火箭发动机气动谐振点火技术中，圆锥形谐振管因气体谐振加热温度高、加热速度快而受到重视。

Liquid propellant rocket propulsion systems ; fault diagnosis ; process modeling ; neural networks ; pattern recognition ; computer simulation

液体火箭推进系统；故障诊断；过程建模；神经网络；模式识别；计算机仿真

This paper attempts to analyse the tendency to develop liquid propellant rocket propulsion technology according to the requirements o launch vehicles and spacecrafts.

本文试图根据运载火箭和航天器的需要来分析液体火箭推进技术的发展趋势。

Fault diagnosis ; failure detection ; liquid propellant rocket's propulsion systems ; condition monitoring ; process modeling ; computer simulation

故障诊断；故障检测；液体火箭推进系统；状态监控；过程建模；计算机仿真

In comprehensive consideration of flight vehicle system constraints,trajectory design,aerodynamic characteristics and solid rocket booster design,a series of system/aerodynamics/trajectory/solid propellant integration design analysis and optimization models for solid rocket booster of flight vehicle were derived.

综合考虑飞行器总体设计约束、轨道设计、气动特性与固体火箭助推器设计间相互影响的情况下，建立了飞行器固体火箭助推器总体/气动/轨道/动力多学科的系统分析模型和设计优化模型。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。