But modern times, many technics have quit the mainstream stage of history for various reasons, and are replaced by metal surface technics that will adapt to contemporary society.
但到了现代，由于各种原因，许多工艺已经退出历史主流舞台，取而代之的是更适合现代社会的金属表面工艺。
But modern times, many technics have quit the mainstream stage of history for various reasons, and are replaced by metal surface technics that will adapt to contemporary society.
但到了现代，由于各种原因，许多工艺已经退出历史主流舞台，取而代之的是更适合现代社会的金属表面工艺。
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