| 摘要 |
1391339 Central heating systems CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT and COMPAGNIE ELECTRO-MECANIQUE 16 March 1972 [17 March 1971] 12478/72 Heading G3R In the control of an open cycle heating system for a building, the primary heat source is controlled with the aid of a means (not described) which functions in accordance with mathematical expressions given, and which expressions take account of the heat losses from the building interior to the outside and heat gains from the outside to the interior, due to various physical variables.
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