There was a huge bang; it sounded like a supersonic jet.传来一声巨响,听起来像是超音速喷气式飞机的声音。These planes travel at supersonic speeds.这些飞机以超音速的速度飞行.Supersonic flight could become a routine form of travel in the 21st century.搭乘超音速飞机会成...
These planes travel at supersonic speeds.这些飞机以超音速的速度飞行.In conclusion we note the following general items concerning flow in supersonic nozzles.最后,我们归纳几个关于超音速喷管流动的一般原则.In addition, the vehicle essentially surfs on the sup...