Recently, the hottest topic in the circle of friends and major forums is the documentary film "Chai Jing smog investigation: under the dome" filmed by former CCTV reporter Chai Jing. As a car engineer who has lived in the devastated area for a long time, I think From the pe.......
Scientists have developed a highly elastic, super-tough fibers, similar in nature and nature of spider silk, has a wide range of applications, and the production process of green.
Spider silk is one of the toughest natural fibers, making artificial fibers compar.......
Scientists have developed a highly elastic, super-tough fibers, similar in nature and nature of spider silk, has a wide range of applications, and the production process of green.
Spider silk is one of the toughest natural fibers, making artificial fibers compar.......