全脱氧钢;
What do the terms" rimming steel", "fully killed steel" and "semi-killed steel" refer to?
这3个术语“沸腾钢”、“镇静钢”、“半镇静钢”指的是什么?
Fully-killed steel has a low yield of goodsteel.
所以,镇静钢成材率较低.
纳米英语 · 双语娱乐资讯
纳米英语 · 英语词汇