英文關鍵字
accident
bad
bankruptcy
boiling
break
breakdown
burst
condition
construction
damaged
disaster
discharge
emergency
energy
engineering
failure
flow
fracture
gas
heating
hot
industrial
industry
leak
leaking
line
maintenance
metal
nobody
obsolete
old
pipe
pipeline
plumber
plumbing
pollution
pressure
problem
pump
repair
rust
service
sleepy
spray
steam
steel
stream
system
tap
technology
tired
tube
water
wet