Q How did feed dogs get their name? —Eliana Norton, via email A Threads senior techni-cal editor Carol J. Fresia looked into the question: In the parlance of mechanical engineering, a "dog" is a device that either causes or prevents movement by some sort of engagement—often, via a toothed mechanism. My research suggests that the toothiness of the device led to the name "dog." On a sewing machine, it's easy to see how the feed mechanism, which grips and pulls the fabric, resembles a dog's teeth.
展开▼
机译：Q喂狗是如何命名的？ —埃莉安娜·诺顿（Eliana Norton），通过电子邮件Threads的资深技术编辑Carol J. Fresia调查了一个问题：在机械工程学的术语中，“狗”是一种会因某种参与而引起或阻止运动的设备-通常，通过齿轮机构。我的研究表明，该设备的齿状导致了“狗”的名字。在缝纫机上，很容易看到抓握和拉动织物的进给机构如何像狗的牙齿。
展开▼
