機器
accurate
circular
closeup
construction
control
cut
depth
diamond
drill
electric
equipment
filter
geology
granite
guide
hard
hardness
industrial
industry
infrared
job
machinery
manufacture
marble
mechanism
metal
mineral
mud
power
powerful
processing
quarry
rock
rope
rough
sharp
smooth
soil
steel
stone
stonework
surface
technical
technology
tool
water
wheel
work
workshop