Developers in Southern California are building what they say will be the first 3D-printed zero net energy neighborhood in the United States.
원문출처 : https://www.cnn.com/2021/03/18/business/california-3d-printed-neighborhood-trnd/index.html
원문출처 : https://www.cnn.com/2021/03/18/business/california-3d-printed-neighborhood-trnd/index.html