patina

noun

1. a fine coating of oxide on the surface of a metal

1. （物体表面形成的）薄层
A patina is a thin layer of something that has formed on the surface of something.

e.g. The trophy is very impressive and rather special because it has a beautiful green patina...
这个奖杯给人印象非常深刻，相当特别，因为它表面有一层漂亮的绿锈。
e.g. He allowed a fine patina of old coffee to develop around the inside of the mug.
他任由大杯内壁积聚上一层薄薄的咖啡垢。

2. （旧东西年深日久产生的）包浆，光泽
The patina on an old object is an attractive soft shine that has developed on its surface, usually because it has been used a lot.

e.g. ...a mahogany door that is golden brown with the patina of age.
红木门因为年深日久形成的金棕色包浆

3. （有点儿…的）样子
If you say that someone has a patina of a quality or characteristic, you mean that they have a small but impressive amount of this quality or characteristic.

e.g. ...a superficial patina of knowledge...
表面上有点儿知识的样子
e.g. Except for a patina of charisma, he was like a thousand other bright young men in Toronto.
除了有点儿魅力外，他和多伦多其他众多机灵的年轻小伙子没有两样。

1. 铜绿：防腐蚀性能与铜绿Patina 即使在极度腐蚀性的大气环境中,太古铜板都会连续形成坚固、无毒的钝化保护层,俗称铜绿(Patina),铜绿的化学成分取决于所在地区的空气条件;工业区和大城市等空气污染严重地区主要以硫化铜盐成分为主,

2. 绿锈：虽然铂金是金属中硬度最强的金属,但是它仍然可以被雕刻并且逐渐显现出一层古色古香的绿锈(patina)色彩. 许多人比较偏爱铂金这种独特的外表. 如果你喜欢这种光泽,珠宝商可以把你的珠宝打磨出原始的光泽,同时,