機器
alps
construction
danger
dig
digging
ecology
environment
equipment
excavation
extraction
field
geology
glarus
granite
heavy
industrial
industry
landscape
large
machinery
manufacturing
mine
mineral
mining
mining industry
mountain
natural
nature
opencast
openpit
power
production
quarries
quarry
quarry equipment
quarrying
removing
resources
rock
site
stone
switzerland
wood
work