mean time to repair वाक्य

However, in the context of a maintenance contract, it would be important to distinguish whether MTTR is meant to be a measure of the mean time between the point at which the failure is first discovered until the point at which the equipment returns to operation ( usually termed " mean time to recovery " ), or only a measure of the elapsed time between the point where repairs actually begin until the point at which the equipment returns to operation ( usually termed " mean time to repair " ).