The hotel lobby's brass railings have developed a warm patina that guests often admire.

飯店大廳的黃銅扶手已形成溫潤的氧化光澤，常讓房客讚嘆不已。

Our supplier warned that the copper fittings may arrive with a slight patina from storage.

供應商提醒我們，銅製配件可能因倉儲而帶有些微銅鏽。

The client asked whether the bronze sculpture's patina would be preserved during shipping.

客戶詢問運送過程中，青銅雕塑表面的氧化膜是否能完好保留。