英文關鍵字
aiming
auto
automated
bit
black
build
closeup
construction
cooling
curled
cut
cutter
drill
drilling
engineering
enterprise
equipment
garage
gray
hard
hole
industry
instrument
iron
isolated
lathe
machining
macro
making
man
manufacturing
metal
milling
perforate
perforator
plant
power
production
sharp
shiny
silver
single
spiraled
steel
strength
technology
tool
turning
work
workshop