The disadvantage of district ventilation is that there are many return air shafts and ventilation equipment.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- The disadvantage of district ventilation is that there are many return air shafts and ventilation equipment.
- Ventilation in birds is accomplished by expansion and contraction of the ( ). A: air sacs B: trachea C: lungs D: diaphragm E: air capillaries
- What is the difference between nature ventilation and mechanical ventilation?
- The basic principle behind the total structure ventilation design is to use inside air to sweep up through a building to clear and remove the dust-laden air. A: 正确 B: 错误
- HVAC是Heating, Ventilation and Air Conditioning 的英文缩写，就是供热通风与空气调节