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  1. dead reckoning

    • n.
      the process of calculating one's position, especially at sea, by estimating the direction and distance travelled rather than by using landmarks or astronomical observations.
    • noun: dead reckoning

    • 更多解釋
    • IPA[ˌded ˈrek(ə)niNG]

    美式

    • n.
      the process of calculating one's position, especially at sea, by estimating the direction ...

    Oxford American Dictionary