In economics, this is a printable known an opportunity cost.

在经济学中，这是一个被称为会成本的打。

Wilson first used a website to publish designs for a printable handgun in 2013.

威尔逊于 2013 首次用网站发布可打手枪的设计。

Instead of starting with metal, plastic, or ceramic, a 3-D printer for organs and tissues uses bioink: a printable material that contains living cells.

普通的 3D 打用金属、塑料或陶瓷，而制作器官和组织的 3D 打用“生物墨水”：一种含有活细胞的可打材料。

If the current trend of Open Source 3D printable files continues, it will not be long before everyone prints their own large objects, like furniture and weapons.

如果目前开源3D打文件的趋势继续下去，用不了多久，每个人都会打自己的大型物品，比如家具和武器。