castings例句
2024年06月17日 08:20:07
Zinc base die
castings are always copper plated in cyanide baths.
锌基合金的压铸件总是在氰化镀液中镀铜.
It's used for the production of large
castings.
它用于大型铸件的制备.
All lead
castings were produced at first by hand in many cases from single cavity molds.
起初所有的铅铸件都是手工生产的,而且在许多情况下都是使用单腔模具.