нижня поверхня крила
naval surface forces, surface fleet, surface forces
wing-in-ground-effect amphibious craft; ground-effect vehicle (GEV); wing-in-ground-effect (WIG); ground-effect craft; wingship; flarecraft; ekranoplan
wing-to-body fairing / wing-body fairing
blended-wing design (blended wing/body design)
at lower echelons
Forces of Lower Readiness (FLR)
land-based lower layer (LBLL)
lower deck (the)
lower deck
lower firing saddle
lower layer
lower receiver
lower right margin
lower unit
Sea-Based Lower Layer (SBLL)
lower glacis plate
lower elevating screw
lower bearing
lower torque link
lower explosive limit
hollow shaft (of lower coaxial shaft)
lower stratosphere
upper and lower coaxial rotors
lower loop of a gun sling
lower-level intelligent control
lower handguard, forend
use lower value for more filtering
wing upper surface
wing under-slat surface
surface-to-surface artillery
surface-to-surface missile (SSM)
control surface / control-surface