It will offer important reference for improving the air exchange efficiency and indoor air quality in train compartments.
研究结果对如何提高车厢内换气效率及空气品质提供了重要参考。
High-efficiency heat exchange and rear panel air vents ensure maximum air flow.
高效率的热交换和背板通气孔保证了最大空气流量。
Ljungstrom air preheater is important equipment to recover waste heat and improve heat exchange efficiency for thermal power plant, steel industry and chemical industry.
容克式空气预热器是热力发电厂、钢铁和化工行业回收余热，提高换热效率的重要设备。
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