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MTBR abbr. stresses
avia.	среднее время работы между ремонтами
oil	средняя наработка между ремонтными операциями (mean time between repair); средняя наработка между заменами (mean time between replacements)
English thesaurus
MTBR abbr.
abbr., avia.	mean time between removals (replacement); mean time between removal
abbr., mil.	Mean Time Between Repair; Mean Time Between Removals; Mean Time Between Replacements
abbr., mil., avia.	mean time between rejections
abbr., oil	mean time between replacement
abbr., scottish	Mean Time Between Repairs/Removals
abbr., space	mean time between removals ［replacement］
abbr., tech.	Mean Time Between Repairs (Vosoni)
energ.ind.	mean time before repair; mean time before restore