specific impulse

基本解释

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，喷管的推力和比冲都将下降；
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冲，所以采用电推进系统可以大量减少推进剂质量。
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.
超燃冲压发动机以其高速、高比冲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。

the ratio of the thrust produced by a rocket engine to the rate of fuel consumption: it has units of time and is the length of time that unit weight of propellant would last if used to produce one unit of thrust continuously

比冲
The internal structure has been optimized to reduce the heat loss and increase the specific impulse.
本文通过优化发动机其内部结构,减小了热损失,提高了比冲。
比冲量

比冲
SFRJ is a kind of new-type propulsion system which possesses the virtue of simple structure, high specific impulse and accommodating the gas flux itself.
固体燃料冲压发动机(SFRJ)是一种新型的推进装置,它具有结构简单、比冲高、自适应性好等优点。
比推力