завихрення повітря навколо маточини колеса
eddy motion / eddying motion
eddy velocity
eddy viscosity
eddy vortex motion
eddy
trunnion boss
boss vortex
air boss
ballistic offensive suppression system (BOSS)
ballistic optimizing shooting system (BOSS)
base operating supply system (BOSS)
broad ocean scoring system (BOSS)
Bureau of State Security (BOSS)
four-boss breaker cam
mini boss
mounting boss
piston pin boss
support boss
wrist-pin boss reinforcement
bushing boss