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。
2
Operating voltage can seriously influence the over-voltage, arising from the transformer under the lightning impulse .
工作电压会严重地影响变压器遭受雷击时产生的过电压。
3
A typical Ultra Wideband Radar system emits impulse signal, which has wide band, but limited operating range.