HYPERSCHALL (AKUSTIK)
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BTULTRASCHALL (AKUSTIK)
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UDC534-8*1
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Descriptor GERHYPERSCHALL (AKUSTIK)
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Descriptor ENGHYPERSONICS (ACOUSTICS)
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Descriptor FREHYPERSONS (ACOUSTIQUE)
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Variant GERSCHALL/HYPERSCHALL (AKUSTIK)
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Variant ENGMECHANICAL OSCILLATIONS/ULTRA-HIGH FREQUENCY MECHANICAL OSCILLATIONS
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Variant ENGMECHANICAL VIBRATIONS/ULTRA-HIGH FREQUENCY MECHANICAL VIBRATIONS
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Variant ENGVIBRATIONS/MECHANICAL VIBRATIONS AT ULTRA-HIGH FREQUENCY
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Variant ENGOSCILLATIONS/MECHANICAL OSCILLATIONS AT ULTRA-HIGH FREQUENCY
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Variant FRESONS/HYPERSONS (ACOUSTIQUE)