ramjet

名词 ramjet:

1. a simple type of jet engine; must be launched at high speed
   同义词：ramjet engine, atherodyde, athodyd, flying drainpipe

ram.jet

n.（名词）
A jet engine that propels aircraft by igniting fuel mixed with air taken and compressed by the engine in a fashion that produces greater exhaust than intake velocity.
冲压式喷气发动机：一种喷气发动机，靠燃烧发动机吸入和压缩的空气与燃料的混合物推进飞机，其排出空气的速度比吸入快