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| ventilation; breathing | |||
| mines ventilation system | |||
| ventilation, air renewal | |||
| air conditioning; air conditioning A system or process for controlling the temperature and sometimes the humidity and purity of the air in a house, etc.; ventilation The process of supplying or removing air, by natural or mechanical means, to or from any space; such air may or may not have been conditioned | |||
| air-circulation; fanning | |||
| ventilation system | |||
| supply of fresh air | |||
| luchtverversing: 9 phrases in 4 subjects |
| Agriculture | 2 |
| Coal | 3 |
| Medical | 1 |
| Transport | 3 |