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PROE和现在的creo 螺纹装饰注释到现在还没有改进，例如M20的螺纹，但在工程图里的显示尽然是M17.5，好奇怪，希望PTC把这个问题解决了，
我们需要等待一点点时间此解决方案
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Regards,
Vladimir
it seems to be normal
