Sea sandiron ore is a kind of cheaper ore, using this ore as sintering material can decrease production cost.
海砂是一种价格比较低廉的含铁矿物,作为烧结原料有利于降低烧结矿的生产成本。
2
Only two types of irons were used during the feathery ball era, the sandiron with a large concave face and the rut iron which had a very small head.
在羽毛高尔夫球时代,仅有两种高尔夫球杆被使用,一种是带有大凹杆面的沙铁杆,另一种是杆头很小的。
3
When these rocks break down into the grains that make up the sand on our beaches, their colour is mostly determined by the presence or absence of iron.