subaqueous fan-fan deltaic depositional system

microwave vacuum drying combined with vacuum drying

non-perturbative QCD vacuum and vacuum condensate

vacuum dryer =vacuum drier

vacuum drying plant and vacuum freeze drying plant

fan marder [= fan marker beacon]

fan-in and fan-out

the selection of primary air fan and secondary air fan

126 kV double-break vacuum circuit breaker

20 kV outdoor on-post vacuum circuit breaker

200kg vacuum furnace

24 kV outdoor high-voltage AC vacuum circuit breaker

4W2 in-vacuum wiggler

a vacuum column

a vacuum furnace

a vacuum transfer line

absolute pressure vacuum gauge

absolute vacuum

absolute vacuum gage