機器
automated
blueprint
caliper
cogwheel
component
design
designer
developer
development
device
document
drawing
electronic
engine
engineer
engineering
equipment
examining
gear
innovation
inspector
invention
machinery
man
manufacturing
mechanic
mechanical
mechanism
metal
motor
occupation
part
plan
print
production
professional
project
repair
safety
scheme
service
specialist
system
technical
technician
technology
tools
worker