час, необхідний криптоаналітику для розкриття шифру / криптосистеми
flying hours / logged flight hours
logged flight hours / flying hours
cryptanalyst
enemy cryptanalyst
friendly cryptanalyst
opponent cryptanalyst
resource-limited cryptanalyst
hours flown in combat
maintenance by flight hours
airframe flying hours
assigned life (of an aircraft in flying hours)
engine logged hours
helicopter logged hours
mean time between repairs (flying hours)
time to first overhaul (flying hours)
total airframe flying hours
sack duty (hours, time)
in the hours of daylight
Watt hours (Wh) rating
man hours of duty