tarnish

• Polished aluminium will tarnish quickly and is often sprayed with a clear lacquer seal
  抛光过的铝很快就会被损毁并且常常要喷透明的密封漆。
• To keep your silver jewelry looking great and against tarnish , maintenance is very important
  要保持您的银饰品光亮和防氧化，保养是非常重要。
• Testing of lubricants ; testing of corrosiveness to copper of greases ; copper strip tarnish test
  润滑剂试验.润滑脂对铜腐蚀作用的试验.铜带去光泽试
• Tarnish , cosmetics , perfume or sweat etc . will trun your silver jewelry s surface into black
  氧化化妆品香水和汗等都会令银饰物的表面暗哑无光。
• Test method for detection of copper corrosion from petroleum products by the copper strip tarnish test
  用铜片生锈试验检查石油产品对铜腐蚀性的试验方法
• I just don ' t want to see a broken printer , or worse , a tarnished 7 relationship between you and me
  我不想看到损坏的打印机，更不希望我们之间的友谊受到影响。
• A groupie call , you fall from temptation now you wanna ball over separation tarnish my image in your conversation
  欢欣的知己纷纷说太妒忌若是幸运得到你定会醉死
• Hydrogen also serves to prevent metals from tarnishing during heat treatments by removing the oxygen from them
  氢也可以用来在金属热处理中通过从中除去氧的方法来防锈。
• Behind them came soldiers and officers bearing a huge holy picture , with tarnished face in a setting of silver
  再后面就是士兵和军官抬着一幅巨大的金光闪闪的黑脸圣像。