external surface concentration
internal and external surface
Satellite External Surface
vertical external surface emission laser
external filtering surface rotary-drum vacuum filter
external heating surface
external rotary surface
external wall surface decoration
optically pumped vertical external cavity surface
Optically Pumped Vertical-External-Cavity Surface-Emitting Semiconductor Lasers
optically pumped vertical-external-cavity surface-emitting semiconduetor lasers(OP-VECSELs)
temperature difference of external building surface
Vertical external cavity surface emitting laser
vertical external-cavity surface emitting laser
vertical-external-cavity surface-emitting laser(VECSEL)
vertical-external-cavity surface-emitting lasers
Vertical-external-cavity surface-emitting semiconductor laser
surface-surface contact