機器
active
activity
assembly
building site
cast
cement
civil engineering
clean
compile
concrete
construction
contractor
driver
duty
equipment
flow
flowing
industrial
industry
job
lorry
machinery
maintenance
manage
mixer
occupation
pack
phase
preparation
prepare
prepared
process
ramp
ready
scene
scour
side
site
taking apart
transport
transportation
truck
vehicle
wet
work
worker