cân đĩa
Học thuậtThân thiện
Definition
- Noun:
- Roberval balance: A type of weighing scale with two pans suspended from a beam, where the pans remain horizontal regardless of the position of the weights. It is named after its French inventor, Gilles Personne de Roberval.
- Platform balance: A general term for a scale with two flat platforms or pans for holding items to be weighed.
Usage Examples
- Noun:
- Người bán hàng sử dụng chiếc cân đĩa cũ để cân rau. (The vendor uses the old Roberval balance to weigh vegetables.)
- Trong phòng thí nghiệm, cân đĩa được dùng để đo khối lượng chính xác. (In the laboratory, a platform balance is used to measure mass accurately.)
Advanced Usage
- "cân đĩa Roberval": This full term specifies the classic mechanical design, distinguishing it from modern electronic scales.
- Bảo tàng khoa học trưng bày một chiếc cân đĩa Roberval từ thế kỷ 18. (The science museum displays a Roberval balance from the 18th century.)
Variants and Related Words
- Cân (n): Scale, balance (general term for any weighing device).
- cân điện tử (electronic scale), cân treo (hanging scale).
- Đĩa cân (n): Scale pan; the individual plate of a balance.
- Đặt mẫu vật lên đĩa cân bên trái. (Place the sample on the left scale pan.)
Synonyms
- Cân hai đĩa: Two-pan balance (a descriptive synonym).
- Balance scale: A common English equivalent.
Notes on Meaning
- The term cân đĩa primarily refers to the traditional mechanical balance with two pans. While "Roberval balance" is a precise technical translation, in many general contexts, it can simply be understood as a platform balance or two-pan scale. The word is now somewhat archaic, as modern digital scales are more common.
- Roberval balance