| Subject | English | Polish |
| auto.ctrl. | digital pulse duration modulation | modulacja cyfrowa długości impulsu |
| el. | pulse duration modulation | modulacja czasu trwania impulsów |
| comp., MS | pulse duration modulation | modulacja czasu trwania impulsu (A method of encoding information in a signal by varying the duration of pulses. The unmodulated signal consists of a continuous train of pulses of constant frequency, duration, and amplitude. During modulation, the pulse durations are changed to reflect the information being encoded) |