铁是人们非常熟悉且在日常生活中应用广泛,诸如建筑材料、工业机床、钢木家具、锅、铲、瓢、勺等等均离不开铁做原料。然而铁的用途并不仅仅是这些,更重要的是铁元素是人体健康必不可少的痕量元素。铁是人体中血红蛋白的一个重要组成部分,血红蛋白之所以能把氧带到全身的每一个细胞中去,其主角就是铁,人体中的血是红色就是由于铁的存在。 Iron is people are very familiar and widely used in daily life, such as building materials, industrial machine tools, steel furniture, pots, shovels, scoops, scoops, etc. are inseparable from the iron as raw materials. However, the use of iron is more than just these, but more importantly, iron is an essential trace element for human health. Iron is an important part of hemoglobin in human body. The reason why hemoglobin can carry oxygen to every cell in the whole body is that its protagonist is iron. Blood in human body is red due to the existence of iron.