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Turn the vertical driving cam to the position where throat plate surface 3 and needle tip 4 align with each other, and the first or the second tooth of the top end of feed dog 5 descends from the throat plate surface. |
中文意思: 让针尖4与针板上面3对齐,在送布牙5的前端1~2齿从针板上面下沉的位置,转动上下传送凸轮,进行固定。 |
以下为相关句子列表(点击查看,可以看对应的解释):
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