Bessemerizing
吹氧, 脱碳操作, (酸性)转炉吹(冶炼)法
🗣️ 情景例句
About fifteen minutes.
大约十五分钟吧。
What time did you use to get up last year?
你去年时常什么时间起床？
Thanks. Oh, this is too small. Do you have a big piece, please?
谢谢。噢，这张太小了。请问你有一张大的吗？