The left photo above shows the rewound work coil 7 1/2 turns with much less dead space in the centre .
左边的照片上面显示的工作，回线圈7 1 / 2轮流那么死腔，在该中心。
Conventional products of this company are long-term work system, that is, the work coil to allow long-term electricity.
本公司常规产品均为长期工作制，即线圈允许长期通电工作。
This is the result of a 4 kJ shot with a mini wrench above the aluminium, which leaves a sharp impression except in the centre where the work coil does not cover.
这是由于4千焦拍摄一场小型扳手高于铝，其中留下了鲜明的印象，除了在中心工作的线圈并不涵盖。
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