Next to the parallel target, a patterned chart with a distance scale is placed on an incline.

在平行于放置被摄物体的位置上把有距离标尺的测试图表放置于一个斜面上。

youdao

Next to the parallel target, a patterned chart with a distance scale is placed on an incline.

在平行于放置被摄物体的位置上把有距离标尺的测试图表放置于一个斜面上。

youdao