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Shortwave radio
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著者:
[prepared under the supervision of the] Office of Scientific Research and Development
National Defense Research Committee.
出版社:
McGraw-Hill Book Co.,
出版日期: 1948.
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著者:
edited by S.N. Van Voorhis [under the supervision of the] Office of Scientific Research and Development
National Defense Research Committee.
出版社:
McGraw-Hill Book Co.,
出版日期: 1948.
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著者:
ed. by Samuel Silver [under the supervision of the] Office of Scientific Research and Development
National Defense Research Committee.
出版社:
McGraw-Hill Book Co.,
出版日期: 1949.
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