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单词 θ205996
释义
society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > other instruments indicating course or leeway (3)
derivometer1842

An instrument invented to show a ship's leeway.

dromoscope1875

An instrument to indicate the course of a ship; also, to indicate the velocity of a train or other vehicle.

course-indicator1900

an apparatus for determining the course of a ship.

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更新时间:2024/12/24 11:19:52