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这个坐标变换的数学关系式什么？搞不懂啊
T型接头时跟平板焊接时焊抢之间的角度呀
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![VR]Q)XQMADR]S}]5`N25M1N.png](https://img.jishulink.com/upload/201908/42b37d72435942458d7218c07123be44.png "VR]Q)XQMADR]S}]5`N25M1N.png")
![S9]X4A~63F(NC$_)7)GVB54.png](https://img.jishulink.com/upload/201908/7c3a7cfbbef4488a8a535fd969e2f5cd.png "S9]X4A~63F(NC$_)7)GVB54.png")
T型接头时跟平板焊接时焊抢之间的角度呀