The surface ratio of conus to disc was calculated using a planimeter.
我们使面积计量圆锥与视神经表面比值。
The surface ratio of conus to disc was calculated using a planimeter.
我们使面积计量圆锥与视神经表面比值。
Graph paper, parallel, and planimeter methods are current tools for acreage calculation.
目前常的量算面积方法有方格纸法、平行线法、求积仪法。
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