機器
燃やす
arch
brilliant
construction
craft
cutting
danger
dangerous
electric
energy
engineering
factory
flames
flash
grinder
heat
high
hot
industrial
industry
job
laser
light
line
man
manufacture
manufacturing
mask
metal
power
production
protection
safety
science
skill
spark
steel
technical
technology
tools
weld
welder
welding
work
worker