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primary standard of flatness
释义
primary standard of flatness
Encyclopedia
工学
平面度测量
释
primary standard of flatness
平面度计量基准
国家平面度计量器具的最高标准。所复现的量值通过计量标准器具向使用中的工作计量器具进行量值传递,以保证平面度量值的统一。
工学
形状误差计量技术
释
primary standard of flatness
平面度计量基准
国家平面度计量器具的最高标准。
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