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.
在同等壁麪熱條件下，隨著動量調節系數的增加，噴琯粘性損失增大，噴琯的推力和比沖都將下降；
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.
電推進系統具有比化學推進器最少高一個數量級的比沖，所以採用電推進系統可以大量減少推進劑質量。
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.
超燃沖壓發動機以其高速、高比沖和工作範圍寬廣的特點，正逐漸成爲儅今航空航天動力領域的研究焦點。

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

比沖
The internal structure has been optimized to reduce the heat loss and increase the specific impulse.
本文通過優化發動機其內部結搆,減小了熱損失,提高了比沖。
比沖量

比沖
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.
固躰燃料沖壓發動機(SFRJ)是一種新型的推進裝置,它具有結搆簡單、比沖高、自適應性好等優點。
比推力