機器
accuracy
adjusting plate
automotive
car
caucasian
check
chromium
closeup
detail
dirty
engineering
equipment
finger
greasy
hand
hands
inches
industrial
industry
inspection
instrument
machinery
manufacture
measure
measurement
measurement tools
measuring
mechanic
metal
meter
metric
micrometer
millimeter
object
oil
part
precision
quality
repairing
service
stainless
steel
technology
thickness
tolerance
tool
verifying
worker