英文關鍵字
background
basement
boiler
brick
central
checking
circulation
clipboard
controller
controlling
devices
dress
engineer
equipment
examining
female
floor
gate
ground
heating
helmet
indication
industrial
industry
inspector
maintenance
manometer
measuring
options
pen
pipe
pipeline
plumber
premises
pressure
repairman
room
shapely
supply
system
technician
technology
valve
verification
wall
water
white
woman
worker
young