ATA是什么意思

用法例句

To obtain a new kind of national treasury reinforced material, with comprehensive violence destruction properties, we prepared the WC P reinforced Cr Ni Steel matrix composite by means of casting, which based on the design of the chemical composition of the matrix.

为了获得具有综合抗暴力破坏特性的新型金库增强材料,进行了基体化学成分的设计,采用铸造法制作了碳化钨颗粒WCp/Cr Ni钢基局部增强复合材料。