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смазочный канал stresses
automat.	oil outer groove
construct.	lubricating gallery
mech.eng., obs.	oil passage
mil., arm.veh.	lubricating groove; lubrication groove; gallery
oil	oil duct
polym.	oilway
tech.	oil channel; oil way; grease passage; lube passage; lubricant passage; lubrication passage; oil gallery
therm.eng.	gallery hole
transp.	lubricating passage
смазочные каналы
mech.eng., obs.	lubrication piping (центральной смазки)
railw.	oil grooving

смазочный канал: 21 phrases in 3 subjects

Armored vehicles	3
Technology	16
Transport	2