查询词典 propellant

The result shows that the movement of the propellant grains is complex and relative to the ignition system very much. Guns with center tube ignition and flame-spreading system can alleviate the accumulation of the propellant effectively, and will have better performance.

结果分析表明：火炮点火后膛内火药颗粒的运动情况十分复杂，其运动规律与点传火的方式密切相关，点火孔均匀分布的中心传火管点火方式可以有效的改善发射过程中火药颗粒在弹丸底部堆积的现象，获得更佳的发射效果。

In this model, the velocity was controlled below50 m /s so that it is easy that the temperature of outlet propellant exceeds 1000K. By the measure of advancing the melting point of metal panel to 3000K, the temperature of outlet propellant even could be close to the very high temperature of the metal panel. It is very active to improve the capability of the whole propulsion system.

在本文模型中，将管道内工质的流速控制在50 m /s ，热交换器的出口工质温度就能够提升至1000K以上；提高换热器高温加热段的金属平板熔点到3000K以上，完全可以将工质出口温度提升至接近金属平板的温度，这样可以大幅度提高推进系统的性能。

Based on the prediction model for uncatalytic double base propellant burning rate the dissertation, carrys on the mathematical treatment to the hypothesis of polyemerization and disintegration, deduces the formula of catalytic double base propellant burning rate and pressure exponent; The results of experimental tests show that it can re-present quantitatively various stage of plateau combustion: super rate, plateau and mesa. The calculated results conform with the experimental results very well.

在非催化双基推进剂燃速预估理论的基础上，对聚合裂解的假设进行数学处理，导出催化双基推进剂的燃速公式和燃速压力指数公式；实验验证结果表明，模型中的公式可以定量地再现双基平台推进剂燃烧中的超速，平台和麦撒现象，而且计算值和实测值符合得较好。

2 The measurement of temperature of solid propellant plume by remote sensing FTIR The infrared radiance spectra was obtained by remote sensing FTIR. The temperatures of four plumes of propellants and a infrared reagent were calculated according to the gas vibration rotation band fine structure such as CO, HF, H2O and HC1 in plume of solid rocket propellant. The results have a agreement with the theoretical data.

2.2 FTIR遥测固体推进剂羽流温度本文利用遥感FTIR测试技术测得了固体火箭推进剂羽流的红外辐射亮度分布图，并根据谱图中CO、HF、HZO、HCI四种气体振转谱带精细结构计算了推进剂羽流温度及红外辐射药剂的燃烧温度，计算结果与理论预测值基本一致。

The delivered Specific Impulse of the propellant is simply the Total Impulse divided by the propellant weight or mass.

交付的具体冲动的推进剂只不过是总的冲动除以推进剂重量或质量。

The specific impulse and efficiency is higher than argon propellant, and is also higher than N2H4 propellant reported in documentations.

这些性能都远高于以氩气为推进剂的情况，也高于文献中以肼为推进剂的情况。

The suitable experimental conditions for the swelling test to determine the cross-link density of NEPE propellant were studied to analyze the relations between the cross-link network and the mechanical properties of the propellant.

为分析NEPE推进剂的交联网络与推进剂性能的相互关系，研究了溶胀法的试验条件对推进剂相对交联密度的影响。

A CO2 laser was employed to ablate water droplets provided by a pulsed liquid propellant feeding system. Experimental results indicate that momentum coupling coefficient C is increased to 50×10^(-5)N?

在成功研制液体工质注入系统的基础上，以脉冲式CO2激光器为光源，将雾化水滴用作工质，进行了激光推进性能实验测试研究。

Keywords: Afterburning Efficiency;Solid Ducked Rocket;numerical simulation;Boron;Solid Propellant

中文关键词：二次燃烧效率；固冲发动机；数值模拟；硼；固体推进剂

He says the bluish color was from aluminum oxide that is typically added to the solid propellant used for such motors.

他说，蓝颜色从氧化铝的是，通常添加到固体推进剂这种马达使用。

For every one of my New Year resolutions, I have been a backslider for years.

说到我的新年决心，我每年都做

With empathy and focus on a feeling level, we can all relate to the common ground of mutuality of emotions.

有了同情心和感觉上一级的重点，我们都可以涉及到相互的情感共同点。