通风

• Ventilation for grain stacks in large warehouse
  高大平房仓多层立体通风垛储藏试验
• An opening for outward discharge ; a vent
  排气道，通气管向外排放物质的洞；通风孔
• Effect of ventilation and air conditioning on iaq
  通风空调对室内空气品质的影响
• The flue should draw better once it ' s been swept
  烟道一经清扫，通风情况应好些。
• Was cut a secondary shaft back out for air
  应该是建一个二级通风孔来获取空气
• Roof and the natural ventilation of modern building
  现代建筑屋顶与建筑的自然通风
• Specification for recirculatory filtration fume cupboards
  循环过滤通风柜橱规范
• Installation of air conditioning and ventilating systems
  空气调节和通风系统的安装