英文關鍵字
ore
geology
mining
transportation
mine
rock
mineral
work
fossil
coal
quarrying
bricks
minerals
crushed
copper
conveyor
transporter
industry
manufacture
gangue
factory
machine
rubble
relocation
stone
resource
natural
material
rocks
gravel
geological
equipment
shaking
production
automated
extracted
automation
mechanized
iron
extraction
granite
metal