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The results indicate that there is a change of burning rate pressure exponential of nitramine propellants, and the content of NGu can adjust the combustion rules Of nitramine propellants under low pressure.

结果发现:硝胺发射药在测试压力范围内有燃速压力曲线转折现象,并且NGu对低压下硝胺发射药燃烧规律有很好的调节作用。

The results indicate that there is a change of burning rate pressure exponential of nitramine propellants,and the content of NGu can adjust the combustion rules of nitramine propellants under l.

结果发现:硝胺发射药在测试压力范围内有燃速压力曲线转折现象,并且NGu对低压下硝胺发射药燃烧规律有很好的调节作用。

Excitation functions of neutron, proton and α particle emission prior to scission measured in the reactions 28 Si+ 164,167,170 Er→ 192,195,198 Pb are studied using an extensive fission diffusion model and it is found that the model can well describe the trend of particle multiplicities of Pb isotopes measured experimentally as a function of the bombarding energy,which indicates the existence of isotope effects in prescission particle emission.

用推广的裂变扩散模型研究了2 8Si+16 4,16 7,170 Er→192 ,195,198Pb反应中测量的断前中子、质子和α粒子多重性的激发函数。发现扩散模型能很好地拟合这些轻粒子多重性随裂变系统激发能和Pb同位素的变化趋势。表明断前粒子发射存在一个同位素效应。进而在一个考虑了裂变过程中摩擦效应的统计模型的框架内,在In和Er这两个元素的同位素链中,考察了同位素效应与裂变碎片质量不对称性和裂变系统尺度的关系。计算结果表明:同位素效应的存在不依赖于裂变系统的大小和不对称性。此外,当裂变系统具有高的中质比时,轻带电粒子发射将不再敏感于裂变延迟时间的长短,而中子发射则非常敏感。

Rockets have successfully launched 27 foreign-made satellites, entitling China to a position in the international commercial satellite launching service market.

中国长征系列运载火箭成功发射27颗国外制造的卫星,在国际商业卫星发射服务市场中占有一席之地。

A three-electrode-gap is used in the high voltage trigger pulse generating circuit to acquire a steepened high voltage trigger pulse,so as to ensure...

触发信号发生电路采用HFBR-0400系列光发射器和光接收器作执行元件,抗干扰能力强,在多级电磁发射实验中,消除了级间互扰造成的误触发。

After all, a Katiusha completely unmasks itself when firing, it raises a large pillar of smoke. That's why we tried to fire only during the dark time.

毕竟,&喀秋莎&发射时是完全暴露的,且产生很多烟,这就是为什么我们只在黑暗中发射。

The first, flight test FTV-3, was performed on 6 March from the Wallops Flight Facility Test Range in Virginia; it was followed on 28 March by FTV-4, launched from the Leahy-class cruiser USS Richmond K Turner.

首次飞行试验FTV-3,于3月6日从位于弗吉尼亚的沃洛普斯飞行研究所实验场发射;然后于3月28日进行了代号FTV-4实验。从莱希级驱逐舰'特纳号'上发射。

Ablation-controlled arc plasma generator is a critical component of energy transition in electrothermal -chemical launch system. Systematic research on piccolo injector is carried out in the dissertation. The main points are as follows: 1 The nature of discharge of piccolo injector is discussed.

本文以国防科技重点预研项目&电热化学炮总体与发射技术研究&为背景,对电热化学炮中电热转换的核心部件—中心电弧等离子体发生器,进行了理论分析、工程设计和实验研究,将中心电弧式等离子体发生器成功地应用到电热化学发射实验中,主要内容包括以下几个方面: 1。

This paper presents the CVD growth and the field-emission of carbon nanotubes as a large current density cathode.

研究了碳纳米管作为大电流密度场发射阴极的CVD生长情况与场发射性能。

XIE Kuo-jun, ZENG Bao-qing, YANG Zhong-haiAbstract: The crystallite diamond films were synthesized on copper substrate by microwave plasma chemical vapor deposition technique. The field emission characteristics and the electrical characteristics of contacts between metal and diamond file have investigated Electron emission tsting indicates low turn-on voltages.

用微波等离子化学气相沉积法在无氧铜基底上沉积微晶金刚石制作场发射冷阴极阵列,研究场致发射特性和金刚石与铜基底之间的欧姆接触特性。

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呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

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However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。