impulse ratio
英 [ˈɪmpʌls ˈreɪʃiəʊ]
美 [ˈɪmpʌls ˈreɪʃioʊ]
网络 冲击比
双语例句
- One of the definitions of Coefficient of restitution is the ratio of impulse of restitution to impulse of compression. The other is the ratio of the normal relative velocity before to after the impact.
恢复系数的一种定义为恢复冲量与压缩冲量大小之比，另一种定义为碰后与碰前的法向相对速度大小之比，即牛顿公式。 - It is found that stochastic trajectory model is superior to determined trajectory model in two-phase flow field simulation. Two-phase flow loss increases and impulse coefficient decreases with the increase of the solid-phase mass ratio and particle mean diameter.
研究发现，随机轨道模型对实际流动现象的模拟优于确定轨道模型，随着固相质量比和粒子平均直径的增加，喷管两相流损失增加，冲量系数下降。 - By setting the ratio of total impulse to loaded weight as the objective function, the chamber average pressure and nozzle area expansion ratio of solid rocket motors, which works in certain altitude range, are optimized with a complex optimizing technology.
以固体火箭发动机冲质比为目标函数，采用复合形法优化技术，对在一定高度范围内工作的纤维缠绕壳体固体发动机的燃烧室平均压强和喷管扩张比进行了优化计算。 - With the accurate V/ F convertor, the temperature can be transformed to impulse signal whose frequency and temperature is in direct ratio.
该装置中水位信号采用两线制传输，水温信号采用PN结传感器，配以精密V/F变换器将温度变换成与频率成正比的电脉冲信号。 - The research of propellant energy performance indicates that the special impulse and characteristic velocity are significantly depended on O/ F ratio and weakly depended on chamber pressure.
过氧化氢和PE燃料组合的能量研究表明：发动机的比冲和特征速度与配比密切相关，与燃烧室压强关系不大。 - Compared with the chemical propulsion, laser plasma has unique advantages such as high specific impulse and large load ratio.
与传统的化学燃料推动相比，激光等离子体具有较高的比冲和有效载荷比等特点。 - Comparing with impulse radar, this method can greatly improve the signal to noise ratio ( SNR), the convergence speed is quick, and iterative times are less than 10.
与冲激雷达相比，这种方法能显著提高信噪比，并且这个方法的收敛速度快，一般迭代10次以内即达到稳定。 - To solve the current impulse problem when the non-contactor switch on or cut off the capacitance, we particularly design the main circuit and the trigger circuit and use the open-off ratio control ways to eliminate impulse current.
其中针对无触点开关投切电容遇到的电流冲击问题设计了专门的主电路和触发电路，并结合通断率控制来消除冲击电流； - It is indicated water based propulsion system can obtain great mass advantages because of its high specific impulse and high power ratio.
结果表明：水基火箭推进系统的高比冲和高比功率、比能量能够给其带来明显的质量优势。 - The influence of eclipsed silicon pits made by electrical parameter is analyzed by finite element method. The result shows that increasing the energy ( impulse width and duty cycle) is in favor of greater depth-diameter ratio micro-pit. 2.
主要研究内容如下：1.采用有限元方法分析了电参数对蚀除凹坑的影响，分析表明，提高放电能量（如脉宽和占空比）有利于获得更大深径比的凹坑。 - Comparing to custom propulsion system, water based propulsion system has the advantages of high specific impulse, high power ratio, no pollution and good compatibility with space life sustain system.
相比起传统的空间推进系统，水基火箭推进系统具有高比冲、高比功率和比能量、无污染以及与空间生保系统结合性好等优点。