![]() Performance evaluation and calculating method for water heater system—Part 1:Household and similar water heater system 热水制备系统绩效评价与计算方法 第1部分:户用及类似用途热水制备系统 |
![]() Hermetic motor-compressors for household and similar heat pump water heater using CO2 refrigerant 家用和类似用途CO2制冷剂热泵热水器用全封闭型电动机-压缩机 |
![]() Electrical installations of buildings - Part 7-703: Requirements for special installations or locations - Rooms and cabins containing sauna heaters 建筑物电气装置 第7-703部分:特殊装置或场所的要求 装有桑拿浴加热器的房间和小间 |
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