patina

n.

（青铜器上的）铜绿；绿锈；（旧木器等表面）年久而产生的光泽；神情

复数：patinaspatinae

1. The cross is finished with an antiqued brown patina.
   它是古铜色的。
2. This tripod has a beautiful patina and an air of great antiquity.
   这个鼎土花斑驳，古色古香。
3. He looked relaxed and elegant and had the patina of success.
   他神态轻松潇洒，给人成功的印象。

The evolution of outdoor copper patina
Reactions of copper patina compounds—I. Influence of some air pollutants
Space weathering on the Moon: Patina on Apollo 17 samples 75075 and 76015
Metallographic studies of the copper patina formed in the atmosphere
Protection of bronze covered with patina by innoxious organic substances
The characterization of patina components by X-ray diffraction and evolved gas analysis
Dirty desktops:using a patina of magnetic mouse dust to make common interactor targets easier to select
Reactions of copper patina compounds—II. influence of sodium chloride in the presence of some air pollutants
The reaction of simulated rain with copper, copper patina, and some copper compounds
The behavior of phosphorous during passivation of weathering steel by protective patina formation