abstract

black

circle

clock

clockwork

cog

cogwheel

complex

component

concept

configuration

cooperation

design

development

device

energy

engine

engineering

factory

gear

gearwheel

group

industrial

industry

innovation

intricate

loop

machine

machinery

mechanic

mechanical

mechanism

module

motion

power

progress

rotate

rotation

science

service

silhouette

symbol

system

teamwork

technical

technology

transmission

watch

wheel

work