excavation process

• 开挖过程

excavation process的用法和样例：

例句

1. Ventilation is a very important process in rock excavation by blasting in underground engineering.
   地下工程钻爆开挖过程中，通风排烟是重要的一环。
2. Tunnels are linear structures, allowing for modifications in design and construction during their excavation.
   隧道为线状结构物，允许在开挖过程中进行设计和施工的调整。