单词 | retro-fire |
释义 | retro-fire1/ˈrɛtrəʊfʌɪə/Astronautics and Science Fiction noun The part of a space mission in which the retro-rockets of a spacecraft are fired; the firing itself. Origin1950s; earliest use found in Journal of the Franklin Institute. From retro- + fire. retro-fire2/ˈrɛtrəʊfʌɪə/Astronautics verb 1 [with object] To fire backwards; especially to fire (a rocket engine) in a direction which provides a spacecraft with reverse thrust and so slows any forward motion; to give (a spacecraft, missile, etc.) reverse thrust by firing a retro-rocket. 2 [no object] To fire the retro-rockets of a spacecraft. Origin1960s. From retro- + fire. Compare slightly earlier retro-fire and retro-firing. |
随便看 |
|
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。