“渗铝”造句
研究了
渗铝包子桶的组织结构及其性能.
Structure and performance of aluminum impregnation to steel _ container are studied.
阐述了碳钢
渗铝钢管存在的焊接问题,并提出了新的焊接方法.
Welding problem are mentioned. And new welding is proposed.
采用固体粉末包埋
渗铝法,在K438高温合金表面制备
渗铝涂层.
The aluminized coating on K 438 superalloy was prepared by pack cementation.