бульбашка бокового (повздовжнього) рівня (у приладі)
magnetic bubble memory / magnetic bubble store
cross-level bubble
bubble of level
fluid level bubble assembly
level the bubble
depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance
elevating bubble
bubble spirit glass
double-bubble fuselage
air bubble
acoustic bubble submarine imitator
air bubble craft / vehicle
box bubble
bubble
bubble and scale
bubble house
bubble housing
bubble sight
bubble tube
bubble-spirit glass
captured air bubble
captured-air-bubble ship
magnetic bubble
magnetic bubble domain memory
magnetic bubble support circuits
magnetic bubble technology
security bubble
transverse bubble
bubble canopy
longitudinal control
longitudinal axle
longitudinal-stability test