您要查找的是不是：
- specular pig iron 镜铁
- Pig iron used as permanent ballast. 压载铁做为永久性压舱物的生铁
- Pig iron is converted into steel by removing most but not all the impurities. 生铁变成钢要除掉大部分而不是全部的杂质。
- Pig iron may contain 4% of carbon. 生铁约含有4%25的碳。
- The freighter carrying pig iron is cleaving through the water. 装着生铁的货船正在破浪前进。
- Cannons are made here from pig iron and wood. 生铁和木头在这里被制成大炮。
- This building makes muskets from pig iron. 生铁在这里被制成步枪。
- Pig iron may contain 4% of carbon . 生铁约含有4%25的碳。
- A furnace in which pig iron is converted into steel by the Bessemer process. 炼钢熔炉一种通过酸性转炉法将生铁练成钢的设备
- He asked us how much pig iron we could produce per day and calculated with us how much we could put out in a year. 他问我们每天能生产多少生铁，又跟我们一道计算一年内能生产多少。
- The iron extracted from the blast furnace is known as pig iron . 从高炉中提炼出的铁叫生铁。
- A workshop where pig iron is transformed into wrought iron. 铁匠铺，锻造车间将生铁锻造成熟铁的工场或车间
- Use iron ore from the mines to make pig iron for you weapons. 铁矿石在这里变成生铁,可以用来制造武器。
- In certain processes, pig iron is changed to steel in a converter. 铣铁在转化炉中经过一定过程而冶炼成钢。
- The iron extracted from the blast furnace is known as pig iron. 从高炉中萃取出的铁叫生铁。
- Cannon Foundry: Cannons are made here from pig iron and wood. 大炮制造厂：在这里把生铁和木头制成大炮。
- Methods Plant; Distribution Plant, coke, bauxite, pig iron. 洗选精煤；经销精煤、焦炭、铝矾土、生铁。
- Village and town enterprises have pig iron, limestone. 乡镇企业产品有生铁、石灰石。
- Blast Furnace: Use iron ore from the mines to make pig iron for you weapons. 鼓风炉:铁矿石在这里炼成生铁，可以用来制造武器。
- Modification of the Bessemer process for converting pig iron into steel. 修正柏塞麦炼钢法将生铁炼成钢的一种方法。
