tour of duty

n.

任期；

Tour of duty
Tour of duty.
TOUR OF DUTY
Patterns of fatigue among seafarers during a tour of duty
Urinary cortisol excretion and mood ratings in aircraft cabin crew during a tour of duty involving a disruption in circadian rhythm.
Tour of Duty:Samurai, Military Service in Edo, and the Culture of Early Modern Japan
Broadening Journal of Public Policy & Marketing's Outreach: My 'Tour of Duty' as Editor
Tour of Duty: Samurai, Military Service in Edo, and the Culture of Early Modern Japan (review)
Another Tour of Duty
[Tour of duty with the ambulance]
Tour of Duty: John Kerry and the Vietnam War (Book)
The Embodiment of War: Reflections on the Tour of Duty
Modelling the international flight attendant tour of duty problem