| 单词 | ramjet engine |
| 例句 | A ramjet engine provides a simple, light propulsion system for high-speed flight. New 'no escape' Meteor missiles boost fighter jets' firepower 2018-12-13T05:00:00Z But officials said that a faulty control fin prevented it from starting its supersonic-combustion ramjet engine, and the craft was lost. Hypersonic jet fails speed test 2012-08-15T18:50:36Z |
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