英文關鍵字
blender
boom
build
cable
cement
clings
column
concrete
construction
crane
danger
dangerous
electrical
electrician
electricity
engineering
equipment
heavy
high
industrial
industry
installation
lift
line
linear
lines
machine
making
metal
milk
pile
piles
pillar
pin
pole
power
professional
protein
reinforced
reinforcement
repair
risky
safety
service
shake
site
steel
strawberryflavored
teamwork
technician
technology
tool
tower
volt
wires
wiring
work
worker
workers