灵鹊做题网pig iron 的来源是什么
来源：学生作业帮 编辑：灵鹊做题网作业帮 分类：英语作业 时间：2024/04/29 23:54:14
pig iron 的来源是什么
pig iron
The name is derived from the time when the iron ran into molds in sand beds fed from a common runner.The row of molds was said to resemble a litter of suckling pigs,hence the individual ingots were referred to as pigs and the runner was called the sow.
The name is derived from the time when the iron ran into molds in sand beds fed from a common runner.The row of molds was said to resemble a litter of suckling pigs,hence the individual ingots were referred to as pigs and the runner was called the sow.