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Tag: 链式缝合
缝纫机的机械奇迹:如何将布料变成华服?
Posted by:
sunxin
in
科普
3 months, 4 weeks ago
你有没有想过缝纫机是如何工作的?我们经常看到那个快速上下移动的小针,留下一串串整齐的针脚。但你可能从未深思,这背后的原理远比你想象的复杂和精妙。
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