track bed
复数形式
track beds
1
轨道床, 道碴层
the layer of stones or other material on which the railway tracks are laid
A track bed is the foundation or base structure on which railway tracks are laid. It consists of layers of materials, such as gravel, sand, or crushed stone, designed to provide stability and support to the tracks. The track bed helps distribute the weight of trains evenly, preventing the tracks from shifting or sinking over time. It also allows for proper drainage, ensuring the tracks remain safe and functional, even in wet conditions. The track bed is an essential part of the railway system, maintaining the strength of the track and supporting smooth train movement.
- The train ran smoothly because the track bed was well-maintained.
火车运行平稳,因为轨道床维护得很好。
- Workers inspected the track bed for any signs of damage after the storm.
工人们在风暴后检查了轨道床是否有损坏的迹象。
- The quality of the track bed affects the stability of the trains.
轨道床的质量影响列车的稳定性。
- A new track bed was installed to support the high-speed rail line.
安装了新的轨道床以支撑高速铁路线。
- Engineers studied the track bed to improve its durability and performance.
工程师研究了轨道床以提高其耐久性和性能。