機器
cartoon
character
circle
classical
cog
cogwheel
cute
design
electronica
emoticon
emotion
engine
engineering
equipment
expression
factory
funny
gear
gears
guitar
happy
icon
illustration
industrial
industry
instrument
isolated
line
machinery
mascot
mechanical
melody
music
musical
pop
revolve
rock
rotate
set
shape
sing
smile
spin
stainless
steel
technical
toothed
transmission