1. 油渍
1. OIL STAIN：衣架 hangter | 油渍 oil stain | 有弹性的,橡筋带 elastic
2. Oil Spots：Float End 走经 | Oil Spots 油渍 | Broken Picks 断线
3. oil stained：Oil hose 输油软管 | Oil stained 油渍 | Oil tanker 油轮
4. oil immersion：oil immersed transformer 油浸变压器 | oil immersion 油渍 | oil immpregnated cable 油浸渍电缆