機器
accurate
alte
back
balance
business
calibration
concept
conceptual
device
equipment
fashioned
gold
gram
gravity
heavy
instrument
iron
isolated
kg
kilo
kilogram
kilograms
little
mass
measure
measurement
metal
metals
metaphor
object
pan
pound
precision
scales
specific
stairs
standard
steel
tools
unit
used
vintage
weigh
weighing
weight
weights