бульбашковий рівень
magnetic bubble memory / magnetic bubble store
azimuth-scale index / azimuth scale index
cross-level bubble
longitudinal-level bubble
elevating bubble
bubble of level
bubble spirit glass
double-bubble fuselage
air bubble
acoustic bubble submarine imitator
air bubble craft / vehicle
box bubble
bubble
bubble house
bubble housing
bubble sight
bubble tube
bubble-spirit glass
captured air bubble
captured-air-bubble ship
fluid level bubble assembly
level the bubble
magnetic bubble
magnetic bubble domain memory
magnetic bubble support circuits
magnetic bubble technology
security bubble
transverse bubble
bubble canopy
observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)
scale of clothing and personal equipment
bar scale