挖坑机 meaning in Chinese

borer
earth auger
hole digger
pit-picker
trench excavator

Designing on dibbling machine for plant tree
植树挖坑机设计若干问题
Current research situation and development trend of earth auger in home and abroad
国内外挖坑机的研究现状及发展趋势
Earth augers have their important status in tree planting and forestation and environmental protection
摘要挖坑机在我国植树造林、保护生态环境中具有重要的地位。
Torsional vibration mathematical modeling of auger - bit principal axis of digging machine for tree planting and its solution
植树挖坑机钻头主轴扭转振动数学建模与求解

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