下列哪项不是增加抗力的措施A.去除无机釉B.去除薄壁弱尖C.保留承力区的薄壁弱尖D.洞缘线设计为圆钝曲线E.做盒形洞形

作者: rantiku 人气: - 评论: 0

问题下列哪项不是增加抗力的措施 A.去除无机釉 B.去除薄壁弱尖 C.保留承力区的薄壁弱尖 D.洞缘线设计为圆钝曲线 E.做盒形洞形

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答案 C

解析

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