The sixth part, on the basis of the characteristic and ability of photo-image reading required, proposes the implement plan of reading teaching of photo-image.
第六部分，在考虑影像阅读的特性和能力要求的基础上，提出影像阅读教学的实施方略。
But there are also some problems about the photo-plate image reading system such as low precision, big artificial error, long processing period, ect.
但成像干板的判读系统也存在着许多问题，判读效率低、人为误差大、处理周期长。
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