natural ventilation
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natural ventilation
(′nach·rəl ′vent·əl′ā·shən)
(mining engineering) The weak and varying ventilation in a mine caused by the difference in air density between shafts.
McGraw-Hill Dictionary of Architecture & Construction:
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natural ventilation
Ventilation by air movement caused by natural forces, rather than by fans.
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McGraw-Hill Science & Technology Dictionary
McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
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