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The cut is represented only on the croosection, but the section is represented for all the visible outlines。
The cut is represented only on the croosection, but the section is represented for all the visible outlines。
A.正确
B.错误
正确答案:正确
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The arrow head can be omitted when the cut structure is symmetry,。
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When a cutting plane pass through symmetric position of a rib, there should be no hatching on the area of the rib.