Isbn: 9787118134445 (1 results)

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  • Language: English

    7118134449 / 9787118134445

    • Hardcover

    Seller: liu xing, Nanjing, JS, Chinaliu xing

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    Condition: New

    £ 74.04

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    Hardcover. Condition: New. Language:Chinese.HardCover. Pub Date: 2024-09 Pages: 72 Publisher: National Defense Industry Press The technology of detecting the presence of ships by sensing underwater magnetic fields is mainly applied in underwater warfare. Given the propagation loss of electromagnetic fields in conductive seawater. frequencies of interest are typically limited to ultra-low frequencies (ULF) of 03 Hz and extremely low frequencies (ELF) of 33 kHz. Until recently. although the high-power propulsion motors. .…