英文關鍵字
aerial
architect
builder
building
cement
concrete
construction
crane
deep
development
dig
drilling
driving
drone
earth
engineer
engineering
equipment
excavation
foreman
foundation
ground
growth
heavy
height
hole
hydraulic
industrial
infrastructure
installing
job
laying
machine
machinery
machines
mechanic
metal
mining
mortgage
pile
piles
pillar
pillars
pipe
plan
platform
power
project
realtor
rig
site
soil
steel
structure
tall
tool
tractor
view
work