機器
automated
bucket
building
business
calx
carbonate
chalk
complex
concrete
construction
energy
engineering
environment
environmental
equipment
facility
factory
fossil
grabber
industrial
industry
lime
machinery
maintenance
manufacture
manufacturing
mined
mineral
open
operate
pile
plant
pollution
power
process
production
quarry
safety
silica
storage
structure
supply
system
technology
warehouse
work
workshop