| 单词 | ramjet |
| 释义 | ramjet (once / 246236 pages) n WORD FAMILY ramjet: ramjets USAGE EXAMPLESBussard ramjets are popular with science fiction authors because they effectively never run out of fuel, harvesting it as they move. Science Magazine(May 23, 2016) The floaters may propel themselves through the planetary atmosphere with gusts of gas, like a ramjet or a rocket. Carl Sagan, Cosmos(1980) Then ramjets, more usually used on missiles, would be ignited and the flight would reach a top speed of Mach 4.5. BBC(Aug 05, 2015) n a simple type of jet engine; must be launched at high speed Syn|Hyper atherodyde, athodyd, flying drainpipe, ramjet engine jet engine a gas turbine produces a stream of hot gas that propels a jet plane by reaction propulsion |
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