铁的渗碳是指碳溶解在固态或液态铁中的过程,高炉内()里的碳素均能参加渗碳反应。 发布时间:2017-06-22 06:03 │ 来源:www.tikuol.com 题型:填空题 问题: 铁的渗碳是指碳溶解在固态或液态铁中的过程,高炉内()里的碳素均能参加渗碳反应。
题型:填空题 ______ I’m tired of life here, I have been considering trying my luck in another city, but I haven’t decided yet.A.As forB.Now thatC.As ifD.Thanks to 查看答案