The ventilation system consists of a supply and exhaust air unit with a counterflow heat exchanger which provides 85% heat recovery.
通风通风系统包括一个送风单元，一个排风单元，与一个可回收85%热能的逆流式换热器。
For heat recovery, a rotary heat exchanger was installed, with efficiencies of up to 85%.
在热回收方面，安装了效率高达85%的旋转热交换器。
The silicon carbide heat exchanger for high-temperature heat recovery is a new one appeared in the last years.
高温余热回收用的碳化硅换热器，是近几年才出现的一种新型换热器。
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