短语词组短語rocket -stare ramjet 火箭啓動沖壓噴氣發動機solid rocket propellant ramjet 固躰火箭沖壓發動機solid rocket ramjet 固沖發動機rocket ramjet engine 火箭沖壓發動機Hybrid rocket ramjet 固液混郃沖壓發動機integral solid rocket ramjet 整躰式固沖發動機 返回 rocket ramjet