機器
architect
arm
busy
confident
designer
diamond
electricity
engineer
engineering
expertise
factory
fire
flash
future
glasses
glove
headphones
heat
helmet
horizontal
indoors
injury
job
machinery
maintenance
manufacture
manufacturing
measure
occupation
one person
power
production
professional
protection
protective
safety
security
service
skill
spark
speed
structure
technical
tool
turning
worker
working
workshop