mean time between significant failures
середнє напрацювання на істотну відмову
середнє напрацювання на істотну відмову
mean time between failures (MTBF) (logistics)
mean time between failures requiring overhaul
mean time between critical failure (MTBCF)
mean time between repairs (flying hours)
mean time between repairs in temperate climate
clearance between barrel and forearm
difference between the elevation angular limits