bastite

例句：

1. 1.The mine produces bastite, which is used in the production of steel.
   这个矿场生产铁矿石，用于生产钢铁。
2. 2.The bastite was extracted from the ground by hand.
   铁矿石是手工从地下提取的。
3. 3.Blast furnaces use bastite as a fuel source.
   高炉使用铁矿石作为燃料来源。