внутрішнє тертя
force of internal friction in fluid medium
internal friction in fluids
Newtonian law of internal friction
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
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
interior ballistics (internal ballistics)
internal armed conflict
internal arrangement