英文關鍵字
mining
coal
opencast
overview
facilities
industry
facility
extraction
inland
excavation
infrastructure
urban
site
operations
aerial
mineral
factory
production
pollution
land
landscape
digging
resources
cargo
business
environment
transportation
development
logistics
geography
impact
machines
equipment
economy
material
bustling
services
issues
storage
dirt
sustainability
rocks
energy
modern
economics
health
structure
heavy
natural