機器
alert
attention
beware
broken
business
caution
chart
circle
cogwheel
concept
crash
damage
danger
dangerous
design
diagram
emergency
engine
engineering
error
flat
gear
graphic
icon
idea
illustration
industrial
industry
internet
mechanical
mechanism
mobile
network
notification
problem
repair
risk
secure
security
sign
symbol
teamwork
technical
technology
warning
web
wheel
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