retrorocket 

  1. 名詞
反向火箭
制動火箭
減速火箭
/此名詞複數為"retrorockets"/

    
                        
    2. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                Because of weight constraints, there was no backup retrorocket engine.                            
    2. 
                                                    
  2. 
                                The spacecraft was maneuvered into retrofire attitude and the first retrorocket fired.                            
    3. 
                                                    
  3. 
                                Grissom had initiated the retrorocket sequence and the spacecraft was arcing downward.                            
    4. 
                                                    
  4. 
                                Total capsule length was 10.8 ft, including a retrorocket pack strapped over the heat shield.                            
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  5. 
                                Also, a rocket may be used to soften a hard parachute landing immediately before touchdown (see retrorocket ).                            
    6.