半横向通风
Because of no natural ventilation, semi-closed tunnel was most seriously polluted.
半密闭坑道未形成自然通风, 所以真菌数最高.
A Dimensionless Proportional Analysis of Cooling Load for Air Conditioning Engineering The Air Conditioning Engineering Design Using full Fresh Air Ventilation for Great Net Bar in the Semi-tropical Zone
关于空调冷负荷的无因次比例分析华南地区大型网吧湿帘墙降温全新风通风工程设计
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