機器
automated
building
burning
business
calx
carbonate
complex
concrete
construction
contemporary
device
electricity
energy
engineering
environment
equipment
facility
factory
fuel
furnace
industrial
industry
lime
limestone
machinery
maintenance
manufacture
manufacturing
operate
plant
pollution
power
process
production
roasting
rotary
rotating
safety
silica
structure
supply
system
technology
tubular
workshop