中科新闻网气短和气喘的区别:why lower the temperature of a hot-working process leads to fine grains?
来源：百度文库 编辑：中科新闻网 时间：2024/04/29 12:36:06
plz ans in english
The temperature of a hot-working process drops the more quickly,the more quantity of fine grains will be achived.The reason is that before the fine grains melt to each other and grow much bigger,they are frozen.
汗
why lower the temperature of a hot-working process leads to fine grains?
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THE LOWER LIMIT...帮忙翻译一下这句话
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