closed air cooling circulation cooling water system
cooling rate of the secondary cooling water
cooling with pipes carrying cooling water
effect of the anti-flow cooling of the second cooling water
free cooling by cooling tower
pressure reducing valve reducing valve
valve disc type breath valve
ablation mode propulsion
AC electric propulsion apparatus
AC power propulsion system
AC-DC propulsion system
active rudder electric propulsion apparatus
adjustable-pitch screw propulsion
Aerospace propulsion system
航空、航天推进系统
航天推进系统
航空/航天推进系统
航空航天推进系统
航空、航大推进系统
航空、航无推进系统
aerospace propulsion theory and engineering
air breathing propulsion system
air independent propulsion
aircraft nuclear propulsion
aircraft propulsion reactor