英文關鍵字
architecture
automatic
barge
blue
building
cable
cables
cana
canal
concrete
construction
danger
electric
electrical
electricity
engineering
environment
equipment
experts
exploration
field
ground
high
industrial
industry
infrastructure
installation
insulators
isolators
maintenance
medium
metal
modern
network
pipe
pipeline
power
repair
river
road
safety
sector
sky
soil
structure
system
technology
tower
track
transmission
transport
transportation
tray
tube
tunnel
underground
utility
voltage
water