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| speed regulator (Alexander Demidov); governor (A governor, or speed limiter, is a device used to measure and regulate the speed of a machine, such as an engine. WK Alexander Demidov) | |||
| frequency controller (igisheva) | |||
| frequency exchanger (WiseSnake) | |||
| frequency convertor (Moscow Cat); variable speed controller (AD Moscow Cat) | |||
| frequency control; frequency regulator | |||
| frequency converter (Yeldar Azanbayev) | |||
| частотный регулятор: 7 צירופים, 7 נושאים |
| הנדסת חשמל | 1 |
| טֶכנוֹלוֹגִיָה | 1 |
| כללי | 1 |
| מכשירי חשמל | 1 |
| תִכנוּת | 1 |
| תעשיית האנרגיה | 1 |
| תקשורת המונים | 1 |