overburden
【建筑】表土犁(表土延碾机)
overburden plough (overburden spreader)
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相关词条
machine for overburden removal, winning machines
overburden【交】;overload【电】 交 力
overburden pressure【地物】
overburden
overburden stripping
overburden layer
coating【材】;overburden【地质】;overlay【建】