 |
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| heat energy metering (Alexander Demidov); metering and recording of heat energy (Alexander Demidov) | |||
| учёт тепловой энергии: 10 phrases in 3 subjects |
| Energy industry | 1 |
| General | 3 |
| Thermal engineering | 6 |
|
| |||
| heat energy metering (Alexander Demidov); metering and recording of heat energy (Alexander Demidov) | |||
| учёт тепловой энергии: 10 phrases in 3 subjects |
| Energy industry | 1 |
| General | 3 |
| Thermal engineering | 6 |