Optimal one-section and two-section circular sound-absorbing duct liners for plane-wave and monopole sources without flow /
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| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington : Springfield, Va. :
National Aeronautics and Space Administration ; For sale by the National Technical Information Service,
1976
Washington : Springfield, Va. : National Aeronautics and Space Administration ; for sale by the National Technical Information Service, 1976 |
| Series: | NASA technical note ;
NASA TN D-8348 NASA technical note D-8348 |
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