英文關鍵字
accuracy
arm
component
control
detail
disk
element
engineering
equipment
factory
flicker
fly
gauntlet
glove
grinder
grinding
hand
hone
industrial
industry
iron
item
machine
machinery
machining
man
manual
manufacture
manufacturing
metal
metalwork
metalworking
mitt
part
piece
production
professional
scintilla
sharpen
sharpener
sharpening
spark
sparkle
steel
technology
tool
work
worker
workpiece
workshop