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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 |