atomic
biological
block
channel
chernobyl
chornobyl
cylinder
device
electric
electrical
electricity
energy
engineering
equipment
generation
graphite
heliumtight
indoors
industrial
industry
inside
insulation
interior
ladder
metal
moderated
moderator
neutron
nuclear
plant
plug
power
rbmk
reactor
room
shield
soviet
space
station
steel
supply
system
technical
technology
thermal
ukrainian
vessel