Automatic detection of heavy rail surface defects, has long been expected to solve the problem.
重轨表面缺陷的自动检测，长期以来一直是期待解决的问题。
The automatic drawing and display are primary problems to solve for electric machine CAD.
自动绘图和显示是电机CAD中一项首先待解决的问题。
The automatic drawing and display are primary problems to solve for electric machine CAD.
自动绘图和显示是电机CAD中一项首先待解决的问题。
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