automation

beautiful

bedrock

big

business

calcareous

capacious

carboniferous

construction

control

conveyor

development

engineering

enormous

equipment

factory

geology

heavy

indoor

industrial

industry

limestone

line

machine

machinery

manufacturing

material

metal

mineral

modern

move

new

plant

power

powerful

premises

production

raw

resource

rock

sedimentary

soil

spacious

steel

technology

work

worker