сила внутрішнього тертя в рідкому середовищі
internal friction
internal friction in fluids
Newtonian law of internal friction
fluid friction
continuity of fluid medium
fluid medium
internal force
low-friction polymer
bearing friction test machine
conventional heavy friction clutch
friction bar
friction joint of sight
friction revolution counter
friction spring
friction-wheel drive
friction brake
friction gear
boundary friction
friction testing
surface friction tester
reference friction conditions
surface friction
surface friction drag
skin friction
skin friction drag
friction
friction damper
with a modicum of friction
gimbal friction
internal ballistics
foreign internal defense (FID)
interference in internal affairs