1)hard facing,硬表堆焊2)hard surfacing,硬表堆焊3)hard surface,硬表面4)crust,硬表层5)hardened face,淬硬表面6)crust,硬表面7)dry hard surface,干硬表面8)rigid surface,坚硬表面9)Polishing for hard surface,硬表面抛光10)hard facing,硬表面堆焊
用法例句
Claims of modern hard surface cleaners——convenience and safety for surface;