英语释义

1. the thrust produced per unit rate of consumption of the propellant that is usually expressed in pounds of thrust per pound of propellant used per second and that is a measure of the efficiency of a rocket engine

片语

specific c impulse比推力

high specific impulse高比沖

optimum specific impulse最佳比沖

vacuum specific impulse真空比沖

theoretical specific impulse理论比推力

pulsed specific impulse脉沖比沖

standard measured specific impulse标準实测比沖

specific impulse efficiency比沖效率

英汉例句

• by virtue of numerical simulations, flow distributions within the thruster, thrust, specific impulse and thrust efficiency of the thruster in radiation and no radiation models are presented.

  数值模拟结果对比给出了辐射模型和非辐射模型流动分布情况，并比较了两种模型推力器推力、比沖和推进效率。

• the heat of formation and relative specific impulse of c5 are the largest.

  c5是所有异构体中生成热最大的，也是相对比沖量最大的。

• curves of constant specific impulse are traced inside the triangle.

  沖为常数的曲线则画在三角形内部。

• gradual engine can meet the needs of specific impulse and density specific impulse of single stage to orbit (ssto) because the propulsion combination was changed gradually.

  通过对推进剂组分进行连续控制，渐变式三组元发动机能够很好地满足单级入轨对比沖和密度比沖的要求。

• as the length of secondary combustion chamber increases, the thrust, specific impulse and combustion efficiency increase respectively.

  随着补燃室长度的增大，发动机推力、比沖和燃烧效率均提高。

• the rocket equation is obtained for a constant specific impulse mission by integration of newton's second law.

  火箭方程式是为了源源不断的特定推进任务，通过加入牛顿第二定律而得到的。

• the theoretical specific impulse formula for two-phase flow in nozzle of rocket-ramjet engine is derived on the basis of similarity to that used for rocket engine.

  本文导出了类似于火箭发动机的火箭沖压发动机喷管的两相流动理论比沖公式；

• a simple estimation method for specific impulse losses of two-phase flow with variable lag is provided.

  介绍了一种变滞后两相流动比沖损失的简单估算方法；

• electric propulsion system offers specific impulse at least an order of magnitude higher than those of chemical thrusters, so propellant masses can be reduced by the same factor.

  电推进系统具有比化学推进器最少高一个数量级的比沖，所以采用电推进系统可以大量减少推进剂质量。

• smokeless propellants with hco all show to give higher specific impulse (theoretical) than those with hmx.

  以hco取代hmx作为无烟推进剂的高能添加剂，其理论比沖都高于hmx无烟推进剂。

• under the same wall heat condition, with the increase of momentum correction coefficient, viscosity loss of the nozzle increases, but thrust and specific impulse decrease.

  在同等壁面热条件下，随着动量调节系数的增加，喷管粘性损失增大，喷管的推力和比沖都将下降；

• the experimental data analysis show that aluminum foams shell not only can weaken the peak pressure, but also effectively absorbs the specific impulse and the specific energy of shock wave.

  通过对数据分析，发现泡沫铝壳不仅可以消减爆炸沖击波峰值压力，而且可以有效地吸收沖击波比沖量和沖击波比能。

• the thrust created in ion thrusters is very small compared to conventional chemical rockets , but a very high specific impulse , or propellant efficiency, is obtained.

  该推力的离子推进器产生非常小相对于传统的化学火箭 ，而是一个非常高的比沖 ，或推进剂效率，得到。

• the analysis showed that there was about 2% specific impulse loss if liquid water was drilled out of engine directly.

  分析表明液态水直接排出发动机将导致约2%的比沖损失。

• the result shows the important engine parameters such as thrust and specific impulse i sp change a lot during the fly process.

  计算表明空气液化发动机的推力、比沖等重要的总体参数在飞行过程中会有较大的变化。

• the relations of thrust and specific impulse to inlet air flow and temperature are derived from theoretical analysis of solid fuel ramjet (sfrj) performance.

  在固体燃料沖压发动机性能分析基础上，推导了某发动机的推力和比沖与入口流量和温度之间的关系式。

• it is a reliable measuring method of the specific impulse for the high-burning rate propellants.

  为高燃速推进剂比沖测试提供了可靠的试验依据。

• effect of ablative cooling on specific impulse of rocket engine.

  烧蚀冷却对发动机比沖的影响。

• the scramjet has some advantages of high flow velocity, high specific impulse and wide operating range which become a viewpoint in the research field of power of aeronautics and astronautics.

  超燃沖压发动机以其高速、高比沖和工作范围宽广的特点，正逐渐成为当今航空航天动力领域的研究焦点。

• in a certain distance from explosive center, the action time of fae positive pressure is longer than conventional explosives and its specific impulse is greater than conventional explosives.

  在距离爆心一定的距离内，fae 爆轰时比常规炸药的正压作用时间长，比沖量大。