underpressure

listen to the pronunciation of underpressure
Английский Язык - Турецкий язык
depresyon
Английский Язык - Английский Язык
insufficient pressure; a marked drop in pressure

The expanding-hot-channel mechanism predicts an initial positive pressure change (an overpressure) while the electrostatic-pressure-relief mechanism predicts an initial negative pressure change (an underpressure).

underpressure
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