Titlebook: Animal Sonar; Processes and Perfor Paul E. Nachtigall (Head, Research Branch),Patrick Book 1988 Springer Science+Business Media New York 19

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978-1-4684-7495-4Springer Science+Business Media New York 1988

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Whale Heads, Magnetic Resonance Images, Ray Diagrams and Tiny BubblesIt has become common to make diagrams of the heads of toothed whales showing the paths of sound waves; this is more suitable in some cases than others. We will mention some limitations, give some observations made since the last of these meetings, and conclude with methods for further study.

強(qiáng)有力

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Friction

赤字

鑲嵌細(xì)工

開始沒有

Developing Countries and Economic Diplomacy,rds typically last about 40 to 80 ms and are emitted at repetition rates up to about 12/s. Most of the acoustic energy lies beween 1 and 15 kHz. Sound during some clicks is continuous but other clicks, here referred to as double clicks, are divided by a silent period lasting about 20–30 ms into two