поверхневе тертя
surface friction tester
surface friction drag
naval surface forces, surface fleet, surface forces
low-friction polymer
bearing friction test machine
conventional heavy friction clutch
fluid friction
friction bar
friction joint of sight
friction revolution counter
friction spring
friction-wheel drive
friction brake
friction gear
boundary friction
internal friction
friction testing
reference friction conditions
force of internal friction in fluid medium
internal friction in fluids
Newtonian law of internal friction
skin friction
skin friction drag
friction
friction damper
with a modicum of friction
gimbal friction
surface-to-surface artillery
surface-to-surface missile (SSM)
control surface / control-surface
guided surface-to-surface missile
surface-to-surface