古典东方油画极度考究透视画图法的规律。

Classic oil paintings greatly stress the laws of perspective. ;

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阐述了在学会第一角投影法的基础上，如何迅速地掌握第三角投影的画图和看图方法。

The paper discusses also how to master rapidly its charting and chart reading based on the first Angle projection.

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自由画图、画钟试验、平分直线法和临摹画图的异常率随被检者年龄的增长、文化程度的降低而增高。

And there was a close relationship between the increase in abnormality ratio of free-hand drawing, clock-drawing, line bisection test and drawing copy and the old age and lower level of education.

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