dầu nhờn
Học thuậtThân thiện
Definition
- Noun:
- Lubricant: A substance, typically oil or grease, applied to surfaces in mutual contact to reduce friction and wear between them. It can also serve to carry away heat or contaminants.
- Lubricating oil: Specifically refers to oil used for lubrication purposes in machinery, engines, or mechanical parts.
Usage Examples
- Noun:
- Động cơ xe cần được thay dầu nhờn định kỳ. (The car engine needs its lubricant changed regularly.)
- Công nhân bôi dầu nhờn vào các bộ phận máy móc. (The worker applies lubricating oil to the machinery parts.)
Advanced Usage
- Technical/Industrial Context: In technical manuals or industrial settings, "dầu nhờn" is a standard term for various grades and types of lubricants, including engine oil, gear oil, and industrial lubricants.
- Dầu nhờn công nghiệp được sử dụng trong các nhà máy. (Industrial lubricant is used in factories.)
Variants and Related Words
- Dầu bôi trơn: A direct synonym, also meaning "lubricant" or "lubricating oil." This term is often used interchangeably with "dầu nhờn."
- Dầu máy: Literally "machine oil," a common term for engine oil or general-purpose lubricating oil.
- Mỡ bôi trơn: "Lubricating grease," a semi-solid lubricant, related in function but different in form from "dầu nhờn."
Synonyms
- Chất bôi trơn: Lubricant (a more formal or general term for any lubricating substance).
- Dầu mỡ bôi trơn: Oils and greases (a collective term for lubricants).
Related Phrases
- Thay dầu nhờn: To change the lubricant/oil.
- Đã đến lúc thay dầu nhờn cho xe. (It's time to change the car's oil.)
- Bơm dầu nhờn: To pump lubricant.
- Hệ thống tự động bơm dầu nhờn. (The system automatically pumps lubricant.)
Notes on Meaning
- The word "dầu nhờn" specifically refers to the substance used for lubrication. It does not refer to crude oil ("dầu mỏ"), cooking oil ("dầu ăn"), or essential oils ("tinh dầu").
- The "nhờn" component implies a slippery, greasy quality, which is the essential characteristic of a lubricant.
- Lubricant