đá ba-lát
Definition
- Noun:
- Ballast: A heavy material (such as crushed stone, gravel, or sand) placed in the hold of a ship or the undercarriage of a railway vehicle to provide stability, balance, and proper operation.
Usage Examples
- Noun:
- Tàu cần chất đá ba-lát để giữ thăng bằng trên biển. (The ship needs to load ballast to maintain balance at sea.)
- Đường sắt mới được rải một lớp đá ba-lát dày. (The new railway track was laid with a thick layer of ballast.)
Advanced Usage
- The term is a loanword from French ("ballast") and is used almost exclusively in technical contexts related to maritime and railway engineering.
- "Đá ba-lát đường sắt": railway ballast, specifically the crushed stone forming the track bed.
Variants and Related Words
- Vật nặng dằn: A descriptive phrase meaning "heavy stabilizing weight," which can be synonymous with ballast in a general sense.
Synonyms
- Stabilizing weight
- Counterweight
- Road metal (specifically for railway ballast)
Related Terms
- Dằn tàu: Ship's ballast.
- Đường ray: Railway track.
- Đá dăm: Crushed stone, which is the common material used for đá ba-lát.