求翻译：在线芯端部量取一半接管长加5mm切除线芯绝缘。并将线芯绝缘层端部削成30mm长的“铅笔头”，留5mm内半导电层。用砂布打磨圆滑并用清洁纸将线芯绝缘表面擦拭干净是什么意思？

End of line core measure core insulation of the half to take over long plus 5mm resection line. And wire core insulation end whittled 30mm long, pencil, leaving 5mm within the semi-conductive layer. Polished smooth with emery cloth and wire core insulation surface to wipe clean with a clean paper

End of the wire is over half of the length plus 5 mm cutting wire insulation. And the wire insulation cut end of a 30mm length of the "pencil" and stay within 5 mm semi-conductive layer. Use emery cloth to smooth sleek and clean the wire insulation surface will be wiped clean

The online core nose quantity takes one partly takes over control long adds the 5mm excision line core insulation.And hews 30mm long the line core insulating layer nose “the lead writing skill”, keeps in 5mm the semiconducting coating.Smooth and insulates superficial cleaning with the emery cloth po

Long line taken over half of the core end volume core insulation and 5mm resection. And core insulation layer end-cut into 30mm "pencil", semi-conductive layer within the 5mm. Emery cloth and Polish diplomatic core insulation surface with clean paper, wipe clean

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