translation.en: And I started first with cow Achilles tendon, where we would take the cow Achilles tendon, which is type-I collagen, strip it of its antigens by degrading it with an acid and detergent wash and forming it into a regeneration template.
translation.zh: 我首先从 牛的跟腱开始 我们可以将牛的跟腱中的 一种胶原质 从其抗原中分离 进过一种酸和清洁剂的冲洗降解 使其成为一种再生模板