In recent years, the immemorial technique of natural ventilation has reacquired recognitions because of appearance of various problems of the applications air conditioning application.
近年来，由于空调应用中各种问题的出现，自然通风这项古老的技术重新得到了重视。
In recent years, the immemorial technique of natural ventilation has reacquired recognitions because of appearance of various problems of the applications air conditioning application.
近年来，由于空调应用中各种问题的出现，自然通风这项古老的技术重新得到了重视。
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