cast brass bar是什么意思

用法例句

The process flow in preparing color nickel screen electroforming cylinder applied to textile printing and dying system,the bath composition and operation conditions of copper electroforming and nickel electroforming were introduced.

介绍了纺织印染系统应用的多色电铸镍网圆筒的制作工艺流程、电铸铜及电铸镍溶液组成与操作条件。