fifth echelon maintenance

п'ятий ешелон ремонту (найскладніші операції, що вимагають високого рівня кваліфікації)

echelon-to-echelon communications system

fifth wheel (FW)

fourth and fifth speed gear synchronizer

fifth columnist

first echelon maintenance

first echelon medical equipment maintenance

echelon maintenance

third echelon maintenance

second echelon maintenance

contingency maintenance / special maintenance

depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance

maintenance checks / routine maintenance, scheduled tasks

maintenance idling (periodic running of engine for maintenance purposes)

organizational maintenance (O-level) (day-to-day work that standard airfield maintenance groups perform in support of airfield operations)

routine maintenance / scheduled tasks, maintenance checks

scheduled tasks / routine maintenance, maintenance checks

special maintenance / contingency maintenance

assault echelon

attacking echelon

brigades in echelon

echelon above corps (EAC)

echelon left / right formation

follow-on echelon

followup echelon

headquarters echelon

headquarters rear echelon net

logistics (supporting) echelon