giữ nhiệt
Definition
Adjective:
- Thermal insulation / Heat-retaining: Describes a material, object, or system that prevents or reduces the transfer of heat, thereby maintaining a stable temperature inside.
- Thermally insulating: Having the property of being a poor conductor of heat.
Verb phrase (function):
- To retain heat / To insulate: The action of preventing heat loss or gain, keeping something warm or cold.
Usage Examples
Adjective:
- Bình giữ nhiệt này rất tốt. (This thermal flask is very good.)
- Vật liệu giữ nhiệt được dùng để cách ly căn phòng. (The heat-retaining material is used to insulate the room.)
Verb phrase:
- Chiếc áo này có khả năng giữ nhiệt. (This jacket has the ability to retain heat.)
- Chúng ta cần giữ nhiệt cho căn nhà vào mùa đông. (We need to insulate the house for winter.)
Advanced Usage
- Technical/Physics Context: Refers to the principle or quality of thermal insulation.
- Thuộc tính giữ nhiệt của vật liệu này rất cao. (The thermal insulation property of this material is very high.)
Variants and Related Words
Bình giữ nhiệt (n): Thermal flask, vacuum flask.
- Anh mua một bình giữ nhiệt để uống trà. (He bought a thermal flask to drink tea.)
Đồ giữ nhiệt (n): Insulated container (e.g., for food).
- Cô ấy mang cơm trưa trong đồ giữ nhiệt. (She brings lunch in an insulated container.)
Synonyms
- Insulating: Preventing heat transfer.
- Heat-retaining: Keeping heat in.
- Thermal: Relating to heat.
Related Concepts
- Cách nhiệt (v/n): To insulate / insulation. Often used interchangeably with "giữ nhiệt," but "cách nhiệt" can more strongly imply creating a barrier.
- Giữ ấm: To keep warm (a more general term, not specifically about insulation properties).