POD marine electric propulsion system
automated marine propulsion system
aircraft nuclear propulsion
airbreathing propulsion system
air-breathing mode propulsion
air independent propulsion
air force rocket propulsion laboratory
air force aero propulsion laboratory
air breathing propulsion system
air augmented water-jet propulsion
aerospace propulsion theory and engineering
Aerospace propulsion system
航空航天推进系统
航空、航天推进系统
航空、航无推进系统
航空、航大推进系统
航天推进系统
航空/航天推进系统
aero space propulsion system