đánh gỉ
Definition
- Verb:
- To remove rust: The primary meaning of "đánh gỉ" is the mechanical or chemical process of eliminating rust (iron oxide) from a metal surface.
- To descale / to derust: It refers to cleaning a surface by stripping away layers of corrosion or oxidation.
Usage Examples
- Verb:
- Trước khi sơn, cần phải đánh gỉ cửa sắt. (Before painting, it is necessary to remove the rust from the iron gate.)
- Công nhân đang đánh gỉ tàu biển. (The workers are descaling the ship.)
- Dùng giấy nhám để đánh gỉ. (Use sandpaper to remove the rust.)
Advanced Usage
- In technical and industrial contexts, "đánh gỉ" is a standard term for surface preparation, often involving tools like wire brushes, sandblasting, or chemical rust removers.
Variants and Related Words
Tẩy gỉ (v): to derust, often implying a chemical cleaning process.
- Ngâm chi tiết trong dung dịch để tẩy gỉ. (Soak the part in a solution to derust it.)
Cạo gỉ (v): to scrape off rust.
- Anh ấy cạo gỉ trên xe đạp cũ. (He scraped the rust off the old bicycle.)
Synonyms
- Descale: To remove scale or encrusted material.
- Derust: To remove rust specifically.
- Clean off corrosion: To clean away corroded material.
Related Idioms
- While "đánh gỉ" itself is a technical term and not commonly used in idiomatic expressions, the concept of rust is used metaphorically. For example, "gỉ sét" (rust) can symbolize neglect or stagnation, but this is not directly part of the phrase "đánh gỉ."