sábado, 19 de setembro de 2026

Apagado, conhecimento, PraveenMohan, PraveenMohan ,

 https://youtu.be/aBQcdEFenQY?is=7uwmqXL4I0llmtFW

China, construiu 50.000 km de ferrovias de alta velocidade , Machien Eye, e outro, Tech Discover

 https://www.youtube.com/watch?v=8DOCcw37sCU https://www.youtube.com/watch?v=gf6zcK7nxt4  https://www.youtube.com/watch?v=M0TzbfIbC4g https:...