PlzGivHugs@sh.itjust.works to Videos@lemmy.world · 10 个月前The Surprising Genius of Sewing Machineswww.youtube.comexternal-linkmessage-square7fedilinkarrow-up1111arrow-down13
arrow-up1108arrow-down1external-linkThe Surprising Genius of Sewing Machineswww.youtube.comPlzGivHugs@sh.itjust.works to Videos@lemmy.world · 10 个月前message-square7fedilink
minus-squaremaryjayjay@lemmy.worldlinkfedilinkarrow-up3·10 个月前It’s all about the bobbin. Because the thread in the needle can pass under the bobbin, the machine can make the two threads cross each other
It’s all about the bobbin. Because the thread in the needle can pass under the bobbin, the machine can make the two threads cross each other