機器
audio
auto
automobile
bass
car
chassis
cog
cogwheel
color
colorful
contour
design
drive
element
engine
equipment
exhaust
flat
icon
illustration
isolated
line
linear
loudspeaker
mechanical
mechanism
modern
music
number
outline
player
power
radio
set
shaft
speaker
stereo
symbol
system
technology
transportation
vehicle
volume
web
wheel