连铸机拉速提高,铸坯液芯长度增加,引起铸坯出结晶器后坯壳厚度变薄,二次冷却段的铸坯易 发布时间:2017-11-04 13:56 │ 来源:www.tikuol.com 题型:填空题 问题: 连铸机拉速提高,铸坯液芯长度增加,引起铸坯出结晶器后坯壳厚度变薄,二次冷却段的铸坯易产生().
题型:填空题 ________ Sandy's damage is unlikely to last long, it would apparently hurt the total economic output of the fourth quarter.A.SinceB.BeforeC.UnlessD.Although 查看答案