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第一节 基本术语及定义 - huoshuiyuan.org · 米(μm)为单位。公差带的大小取决于公差的大小,公差大的公差带宽,公差小的公差带 窄;公差带相对于零线的位置取决于某一极限偏差。公差和极限偏差的大小都是根据使用性
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