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1 ionic focussing
ionic focussing Gasfokussierung f (Elektronenstrahlofen)English-German dictionary of Electrical Engineering and Electronics > ionic focussing
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Underwater acoustics — The field of underwater acoustics is closely related to a number of other fields of acoustic study, including sonar, transduction, acoustic signal processing, acoustical oceanography, bioacoustics, and physical acoustics.HistoryUnderwater sound… … Wikipedia
