短語(yǔ)詞組短語(yǔ)solid -fuel rocket detail 固態(tài)火箭發(fā)動(dòng)機(jī)Solid Fuel Rocket 火箭Solid fuel rocket motor 固態(tài)火箭發(fā)動(dòng)機(jī)conical segmented solid fuel rocket 錐形分段固躰燃料火箭發(fā)動(dòng)機(jī) 返回 solid rocket fuel