The disadvantage of district ventilation is that there are many return air shafts and ventilation equipment.
举一反三
- The disadvantage of district ventilation is that there are many return air shafts and ventilation equipment. A: 正确 B: 错误
- What is the difference between nature ventilation and mechanical ventilation?
- Ventilation in birds is accomplished by expansion and contraction of the ( ). A: air sacs B: trachea C: lungs D: diaphragm E: air capillaries
- HVAC是Heating, Ventilation and Air Conditioning 的英文缩写，就是供热通风与空气调节
- Smoke Exhaust and Ventilation System