機器
alarm
alert
background
banner
business
clock
cog
cogwheel
concept
control
design
engine
engineering
flat
gear
graphic
hour
icon
illustration
industrial
industry
innovation
instrument
machinery
management
manager
mechanical
mechanism
minute
plan
process
productivity
project
rackwheel
schedule
science
sign
sketch
strategy
symbol
technical
technology
time
timer
watch
wheel
work