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  1. Oxford American Dictionary

    leveling rod

    • n.
      a graduated pole with a movable marker, held upright and used with a surveying instrument to measure differences in elevation. Also called leveling pole, leveling staff.

    • noun: leveling rod, plural noun: leveling rods

    • 相關詞

    leveling screw

    • n.
      a screw for adjusting part of a machine or instrument to a precise level.

    Oxford American Dictionary