Txij li thaum nws tsim nyob rau hauv 1960s, cov pa roj carbon-carbon C / C composites tau txais kev saib xyuas zoo los ntawm cov tub rog, aerospace, thiab nuclear zog kev lag luam. Nyob rau theem pib, cov txheej txheem tsim khoom ntawm cov pa roj carbon monoxide yog qhov nyuaj, kev nyuaj, thiab cov txheej txheem npaj wa ...
Nyeem ntxiv