Crank balanced beam pumping unit in Jidong oilfield sunset scenery, closeup of photo
Palabras clave
china,
beam,
crank,
balance,
crude oil,
machinery,
equipment,
energy,
resource,
exploration,
mining,
industrial,
circulation,
traction,
spin,
setting sun,
cloud,
evening,
light,
orange,
colours,
space,
silhouette,
beautiful,
feature,
background,
outline,
landscape,
nature,
environment,
underground,
strata,
geology
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