With the increasing demands on indoor environment quality and energy consumption in modern buildings, heating, ventilation, air-conditioning systems become more and more complex.
随着人们对现代建筑室内环境质量和能源消耗要求的不断提高，供热、通风和空气调节系统变得越来越复杂。
Compared with the conventional distillation, the use of complex distillation can lead to substantial saving in energy consumption and capital cost.
复杂精馏塔的使用，与传统精馏塔的一股进料，二股产品的精馏塔比较，能够产生相当大的能量消耗及成本上的节约。
The complex climate complicate the research in the hot summer and cold winter region, while it urges analyzing of building energy consumption and, what's more, makes it more important.
夏热冬冷地区气候特点使节能研究很复杂，这使得建筑能耗分析更为重要和紧迫。
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