oil film
US /ˈɔɪl fɪlm/
UK /ˈɔɪl fɪlm/
名詞
油膜
a thin layer of oil, especially one floating on water or covering a surface
範例:
•
A rainbow-colored oil film was visible on the surface of the puddle.
水坑表面可見一層彩虹色的油膜。
•
The mechanic checked the engine for any signs of an oil film, which could indicate a leak.
機械師檢查了發動機是否有油膜跡象，這可能表明有洩漏。