abstract
angle
architecture
belt
building
concrete
constructor
contaminated
contrast
district
dumping
engineering
enterprise
estate
fabricate
factory
heavy
industrial
industry
ladder
lines
machined
manufactured
manufacturing
materials
matrix
mechanic
mechanical
mechanized
nuclear
nut
pipeline
piping
plant
plumbing
poison
pollution
power
radiation
reflection
robots
smokestack
stock
streamlined
technical
tube
urban
valve
waste
water