gravel washing plant

例句：

1. 1. The gravel washingplant is responsible for removing the finerparticles from the gravel.
   砾石清洗厂负责从砾石中去除更细小的颗粒。
2. 2. The gravel washing plant has been upgraded to meet stricter environmental standards.
   砾石清洗厂已升级以满足更严格的环境标准。
3. 3. The gravel washing plant is a crucialcomponent of the road maintenance system.
   砾石清洗厂是道路维护系统的关键组成部分。