3D-printed concrete bridge unveiled in Tianin, China

中国天津现3D打印的“赵州桥”。

A 3D-printed concrete bridge has been unveiled in Tianin, China. It's modeled on Zhaozhou Bridge, a 1,400-year-old stone arch bridge

赵州桥位于河北省石家庄市赵县，由隋朝匠师李春建造，距今已有1400多年历史，是世界上现存年代最久远、跨度最大、保存最完整的单孔坦弧敞肩石拱桥。河北工业大学采用3D打印技术，在天津市北辰区的河北工大校区成功复制并装配了赵州桥复制品。

以下是youtube网友的评论：

SONS OF DRAGONS
Another day another amazing achievement in CHINA

中国又取得了另一个惊人的成就啊

Ploppy Ploppy
I have to be honest I have never held a 3d prints item , let alone knew you could make art and construction at the same time . Thank you for enlightenment .

老实说，我从来没有用过3d打印的东西，而你们会用3d打印一座桥了。谢谢你的启迪

Au Fook Chuen
They see,They learn, They conquer

他们先是观察，从中学习，然后攻克！

mark harrowfield
Very clever

非常聪明

วิวัฒน์ ภิญโญสโมสร
Good job. The scale could be increased in order to build the bigger & longer suspension bridges across the sea which consume only the short period of time.

干得好。规模可以扩大，以后用3d打印更大更长的跨海大桥，可以在很短时间内完成

Data JY
Absolutely, can build everything that way.
(perhaps now earthlings can get an idea how vimana are made)

那是当然，现在所有东西都可以3d打印了

SpaceCrete
Well done project!

这个好！

6packter
Trump and uk unhappy
Why ? Why China not stupid abd continue to be poor like the rest of develo nations?

特朗普和英国不开心了

为什么？因为中国没有像其他发展中国家一样一直贫穷下去啊