What if cracks in concrete could fix themselves? - Congrui Jin
0
0
4,676 مناظر·
11/22/23
میں
Life
Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-if-cracks-in-concrete-could-fix-themselves-congrui-jin Concrete is the most widely...
مزید دکھائیں
0 تبصرے
sort ترتیب دیں
