一台小型挖掘机用振动板撞击地面 在施工期间铺设地下下水道管道和通讯 土壤压缩 土壤挖掘
相關標籤:
- digger
- construction equipment
- excavation
- hydraulic
- heavy machinery
- construction vehicles
- construction site
- equipment
- construction
- construction industry
- machinery
- building site
- contractor
- machine
- construction work
- industrial machine
- industrial machinery
- building construction
- labor
- engineering
- industrial
- underground
- shovel
- soil
- heavy
- occupation
- small
- job
