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2 光滑圆柱体结合的公差与配合 - tup.com.cn · 尺寸。在公差带图中,正偏差位于零线的上方,负偏差位于零线的下方。 2. 尺寸公差带 在公差带图中,由代表上、下极限偏差的两条直线所限定的一个区域,称为尺寸公差
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