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Sonar

Karen Price Hossell

出版	Heinemann Library, 2003
主題	Juvenile Nonfiction / GeneralJuvenile Nonfiction / Science & Nature / GeneralJuvenile Nonfiction / Technology / Electricity & ElectronicsTechnology & Engineering / Radar
ISBN	15881048859781588104885
URL	http://books.google.com.hk/books?id=_5-0SdGOVDcC&hl=&source=gbs_api

註釋

Get an overview of sound waves and how they work, and of the history, development, and uses of sonar by both humans and animals.