retrorocket

 
['retr???r?k?t]     ['retro??r?k?t]    
  • n. 制動(dòng)火箭
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retrorocket的英文翻譯是什么意思,詞典釋義與在線(xiàn)翻譯:

英英釋義

Noun:
  1. a small rocket engine on a larger rocket or spacecraft that is fired to slow or alter its course

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