機器
aggregate
balance
bunded
carving
chair
chimney
connecting
construction
counterbalance
drive
electrocable
engineering
environment
equipment
factory
fuel
gas
gate
hairpins
industry
installation
manifold
manometer
motor
nuts
oil
oilfield
pipe
pipeline
pipework
plunger
pollutant
pollution
power
pressure
processing
pump
pumpjack
refinery
regulator
rock
rod
rosneft
steam
technology
throttle
weight
well