传动主轴;变速器主轴
to decorate or inlay with niello.
用黑色合金装饰或镶嵌
Nielli (objects decorated with niello) were produced in ancient Rome and 9th-century EnglanD. In Russia niello work is known as Tula work.
黑金制品(带黑金镶嵌装饰的物品)由古罗马人和9世纪的英国人制造。在俄国黑金镶嵌制品称为图拉工艺品。
In Russia niello work is known as Tula work.
在俄国,黑金镶嵌制品被称为图拉工艺品.
After the excess niello is scraped away, the surface is polished.
将多余的黑金刮掉, 再将表面抛光.
The contrast of the Black niello against the Bright surface produces an attractive decorative effect.
黑色镶嵌与明亮表面的反差产生富有魅力的装饰效果.
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