| 摘要 |
A pneumatic liquid spraying device comprising a spray nozzle with a liquid ejection channel, spraying air ejection channels and at least one entrainment air ejection channel coaxial and parallel to said liquid ejection channel, these channels emerging on the same frontal face of the nozzle, characterized in that at least one entrainment air ejection channel is independent of the other aforementioned air channels and is designed to be supplied by specific compressed air.
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