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  Search result  Your search for [subject]Echo returned 3 records.  
 
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  Book Multiple beam generation with a digital computer for echosounding at low high frequencies.

by Slootweg, Adri Peter, 1944-; Utrecht: Drukkerij Elinkwijk BV, 1980.

Subject: Echo sounding.

  
     
Relevance: 12.61%
 
     
  Book Echoes of bats and men [seeing with sound waves].

by Griffin, Donald Redfield, 1915-; Garden City, N. Y.: Anchor Books, 1959.

Subject: Sound-waves; Echo; Orientation.

  
     
Relevance: 12.33%
 
     
  Analytics Defunct mining firm paid off terrorists, claims ex-manager.



Subject: Laird, Allan; Echo Bay Mines Limited.

  
     
Relevance: 12.06%
 
     
 
         
         
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