“开坯”怎么读

开坯、粗轧、 热轧 窄带钢支承辊.Blooming and slabbing mills , the back - up rolls of narrow strip mills.锡含量高的SUS304HC含铜奥氏体不锈钢初轧开坯时容易出现开裂现象.SUS 304 HC austenite stainless steel with more Sn cracks in the course of blooming mostly....

“开坯”的英语可以翻译为：[冶] cogging，cogging down，blooming，break-down ...