Geometrical product specifications(GPS)—X-ray three dimensional size measuring machines—Part 6:Testing method of workpieces.
全国产品几何技术规范标准化技术委员会(SAC/TC 240)
GB/T 34874的本部分规定了基于计算机断层成像（CT）原理的X射线三维尺寸测量机进行工件检测的方法。
<br/ 本部分适用于具备三维几何尺寸测量功能的工业CT测量机。
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