oil film
US /ˈɔɪl fɪlm/
UK /ˈɔɪl fɪlm/
名词
油膜
a thin layer of oil, especially one floating on water or covering a surface
示例:
•
A rainbow-colored oil film was visible on the surface of the puddle.
水坑表面可见一层彩虹色的油膜。
•
The mechanic checked the engine for any signs of an oil film, which could indicate a leak.
机械师检查了发动机是否有油膜迹象，这可能表明有泄漏。