铁的熔点是1540℃,为什么中国古代炉温大于1200℃就可以用来将铁矿石化为铁水来炼铁了? | 8k8 bonus | Updated: 2024-08-09 10:47:56
NEW YORK -- The shooting incident at former US president Donald Trump's rally in Pennsylvania is being investigated as attempted assassination, local media reported on Saturday night, citing law enforcement officials.