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plane table 【測】平板儀,平板繪畫器。

plane tree

An indicator or a sighting apparatus on a plane table , used in angular measurement 旋標裝置飛機控制板上的指示器或觀測儀,用來測量角度

Plane table map 平板儀測量圖

Design on plane table - knife drum cutter of the verdant forage harvester 青飼機平板刀式滾筒切碎器的設計研究

Calibration specification for plane tables 平板儀校準規范