A mass of wires spills out of a wooden box; on top sits a metal plate punched full of holes.
一大团电线耷拉到了一个木箱子外面；一个打满孔的金属盘放在木箱上面。
A circular hoop sheet is punched with a spiral line, and one end of the spiral line penetrates through the connecting piece to contact a bottom plate to engage with the screw.
圆形箍片冲制有螺线一端穿过连接件贴靠在底平面并与螺钉相啮合。
The round punch is passed through a work plate placed on the PET to cause a punched-out piece to remain within the PET, thereby boring the fine hole.
圆形冲孔 器穿过放置在PET上的工作板，以便使冲掉的片留在PET内，由此钻出细 微孔。
The round punch is passed through a work plate placed on the PET to cause a punched-out piece to remain within the PET, thereby boring the fine hole.
圆形冲孔 器穿过放置在PET上的工作板，以便使冲掉的片留在PET内，由此钻出细 微孔。
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