英文關鍵字
above
aerial
automated
automatic
belt
construction
conveyor
equipment
extraction
factory
heavy
industrial
industry
machinery
making
manufacturing
mine
mining
moving
plant
process
production
quarry
sand
sorting
top
transportation
view
working
英文關鍵字
above
aerial
automated
automatic
belt
construction
conveyor
equipment
extraction
factory
heavy
industrial
industry
machinery
making
manufacturing
mine
mining
moving
plant
process
production
quarry
sand
sorting
top
transportation
view
working