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1. |
Frequency changers |
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Journal of the Institution of Electrical Engineers,
Volume 55,
Issue 264,
1917,
Page 197-204
R.Townend,
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PDF (974KB)
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DOI:10.1049/jiee-1.1917.0010
出版商:IEE
年代:1917
数据来源: IET
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2. |
Telegraph poles in New Zealand |
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Journal of the Institution of Electrical Engineers,
Volume 55,
Issue 264,
1917,
Page 235-238
J.Orchiston,
Preview
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PDF (586KB)
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DOI:10.1049/jiee-1.1917.0014
出版商:IEE
年代:1917
数据来源: IET
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