1、This article introduces causes of aluminium foil surface oil stain and sticking.
介紹了鋁箔表面產生油斑和油粘的原因。

2、Have you washed out the oil stain on your coat?
外套上的油污洗掉了嗎？

3、Powdered carbon can clean away fingerprint, oil stain on lens, and do not scratch or damage lens.
碳粉頭更可清除鏡片上難清潔的指印、油污等頑固污漬，且不會刮花、損傷鏡頭；

4、Oil stain and rust stain on welding wire shall be removed.
焊絲在使用前應清除其表面的油污，銹蝕等。

oil stain翻譯