translation.en: Often, the digital thread is broken right at prototype, because you can't go all the way to manufacturing because most parts don't have the properties to be a final part.
translation.zh: 经常会发生数字线生产在 原型制造这一环节卡壳， 因为无法直接生产制造， 因为大部分部件不具备 成为最终产品的特性。