英文關鍵字
angle
auto
automobile
body
broken
car
construction
corrosion
cutting
damaged
danger
electric
engineering
equipment
fire
flash
garage
grinder
hand
industrial
industry
lifted
man
manufacture
manufacturing
mechanic
metal
metallurgy
old
part
professional
repair
rotate
rusty
service
spark
sparks
specialist
steel
technical
tool
tube
unprotected
vehicle
welding
wheel
work
worker
workshop