| Subject | English | Italian |
| met., el. | a specified period comprising a time during which an arc runs continuously plus an off time | durata del ciclo convenzionale di saldatura |
| comp., MS | run time | tempo lavorazione (The time it takes for a physical manufacturing operation, excluding setup time, queue time, and move time) |
| comp., MS | run time | fase di esecuzione (The time during which an application is running. During run time, you can interact with an application) |
| comp., MS | run time | tempo di esecuzione (The time it takes for a physical manufacturing operation, excluding setup time, queue time, and move time) |
| transp. | run-down time | tempo di rallentamento |
| mech.eng. | run-down time | tempo di arresto del motore |
| gen. | run-down time | Tempo di inserzione |
| comp., MS | run-time error | errore di run-time (A software error that occurs while a program is being executed, as detected by a compiler or other supervisory program) |
| comp., MS | run-time library | libreria run-time (A file that contains one or more prewritten routines to perform specific, commonly used functions. Programmers use an RTL primarily in high-level languages such as C to avoid rewriting these routines) |
| transp., tech. | run-up time | tempo di aumento di velocità |
| commun. | run-up time | tempo di messa in funzione |
| law | the service of a judicial document causes time to begin to run | la notificazione di un atto giudiziario fa decorrere il termine |
| law | the time within which an action must be brought shall run only from the date of this publication | i termini per la presentazione dei ricorsi decorrono a contare dalla stessa data |
| chem. | total run time | durata totale |
| chem. | total run time | tempo totale |