wash metal
... 精炼铁：refined iron 精炼生铁：wash metal 精炼熔剂：refining flux ...
基于88个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
由于生铁和废钢铁都便宜，又因为不需要昂贵的精炼过程，和钢相比铸铁是一种廉价材料。
Since pig iron and scrap are cheap, and because there is no expensive refinement process, cast iron is a low cost material compared with steel.
youdao
应用推荐
模块上移
模块下移
不移动