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Oil field site, in the evening, oil pumps are running, The oil pump and the beautiful sunset reflected in the water, the silhouette of the beam pumping unit in the evening.
The oil pump, industrial equipment. Oil field site, oil pumps are running，Extraction of oil.
The oil pump, industrial equipment
Bahrain - Sakhir - Oil Pump Jack
Oil industry. Oil pumps extract oil in a field. Oil field.

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