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| рН-метр (прибор для измерения pH среды) | |||
| потенциометр; переменный резистор | |||
| pH-метр | |||
| регулируемый резистор; реостат | |||
| Potentiometer: 20 phrases in 10 subjects |
| Antennas and waveguides | 1 |
| Automated equipment | 6 |
| Automobiles | 1 |
| Electronics | 4 |
| Machine tools | 1 |
| Mechanic engineering | 1 |
| Microelectronics | 2 |
| Sewing and clothing industry | 2 |
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| Telemechanics | 1 |