N a surveying instrument consisting of a drawing board mounted on adjustable legs, and used in the field for plotting measurements directly 平板仪
V to survey (a plot of land) using a plane table 用平板仪测绘(土地)
An indicator or a sighting apparatus on a plane table, used in angular measurement.
旋标装置飞机控制板上的指示器或观测仪,用来测量角度。
A sheet of paper or mylar covering the plane table is annotated during map construction.
用一张纸或聚酯薄膜霞盖在平板仪上,可在制图时作诠释。
Then it covers the image in a horizontal plane of infrared light that lies just above the table.
然后它投射出仅在台面之上的水平面的红外光形成的画面。
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