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тематика/ключевые слова |
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heat power engineering [39] |
heat pumps [2] |
heat recovery [1] |
heat regulation [1] |
heat resistance [1] |
heat resistance of copper [1] |
heat source [1] |
heat supply [28] |
heat supply system [2] |
heat supply systems [1] |
heat transfer [2] |
heat treatment [19] |
heat-insulated external walls [1] |
heated towel rails [1] |
heaters [2] |
Heating [1] |
heating [40] |
heating boilers [1] |
heating devices [1] |
heating of buildings [1] |