With hot air heating system and high efficiency.

采用无焰热风系统，单机生产效率高。

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A typical solar air heating system USES a dark colored, perforated aluminum sheeting on a south-facing wall.

一个典型的太阳能空气加热系统例子，是在朝南的墙上利用一个黑色，多孔铝薄膜。

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The comparison between warm-air heating system and hot water heating system is made. The applicability and practicability of the warm-air heating system are analyzed.

对热风供暖系统与热水供暖系统进行了比较，分析了热风供暖系统的适应性和实用性。

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By sucking 55-degree heat out of the ground and concentrating it, the heat pump is able to deliver 110-degree heat into the warm air ducts of a central heating system.

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The coating can eliminate the need for blinds and can enable a business to install a heating, venting and air conditioning system that is 30% smaller than would otherwise be needed.

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Rupert said the same chlorine dioxide treatment will be used on the building's heating, ventilation and air conditioning system (HVAC), where spores had been found after the letter was opened in Daschle's office.

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