求翻译：连铸坯端部切割毛刺、连铸坯火焰清理后的残渣、连铸坯表面夹渣等在轧制过程中压入钢板表面形成的结疤；是什么意思？

Billet end cutting burr, billet Scarfing residue, slab surface slag pressed into the steel plate formed on the surface of the scarring in the rolling process;

Continuous casting preform end cutting burrs, even after clean flame cast preform the residues, continuous casting, such as unprocessed surface residues folder in the rolling process into the steel surface form and the knot;

After the continuous casting semifinished product nose cutting burr, the continuous casting semifinished product flame cleaning up residual, the continuous casting semifinished product surface entrapped slag and so on presses in the scar in the rolling process which the steel plate surface forms;

End cutting burrs, continuous casting slab continuous casting billet flame after cleaning residues, slag on the surface of continuous casting slab in rolling onto the steel surface, such as formation of scar;

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