扩张; 展开; 显影; 制造; 研发; 开发(During the 1970s and early 1980s a number of processes for production of strip, sheet and pipe using liquid metal atomization and spray forming with substrate were developed. 20 世纪 70 年代和 80 年代初，开发了许多利用金属液雾化和使用基底成形器喷射成形生产带钢、薄板和钢管的方法。)
