translation.en: So we take that periosteum layer and we developed a way to inject underneath it a liquid that then, within 30 seconds, would turn into quite a rigid gel and can actually lift the periosteum away from the bone.
translation.zh: 所以我们要利用骨膜层， 我们想办法在它下面注入一种液体， 然后在30秒内 会变成一种硬胶。 这样就将骨膜提起，与骨骼分离，