senior white engineer in reflective workwear standing in front of the oil refinery - 石油工人 個照片及圖片檔職業, 僅一男人, 氣體
petrochemical, oil and chemical engineers, senior petroleum, stand in front of the refinery. it has a transportation train in front and an oil refinery in the background. they are discussing the refinery construction plan and looking at the impact on the - 石油工人 個照片及圖片檔
engineer in protective wear doing a project on digital tablet near nodding donkey or pump jack, oil pumps, against sunny sunset sky. - 石油工人 個照片及圖片檔工程師, 油田, 汽油
drill worker calculating data on tablet, oil refinery tasks near pump jack, processing facility. oil industry - 石油工人 個照片及圖片檔技術, 汽油, 石油工業
oil worker engineer looking on the pumpjack in the oil well of the oil field - 石油工人 個照片及圖片檔原油, 工程師, 汽油
rear view of petrochemical engineers with plan wearing safety coveralls are discussing about production performance of oil and gas. oil and gas industry concepts. - 石油工人 個照片及圖片檔背面拍攝, 工廠, 工程師
petroleum engineer reading project plan, follow up progress of oil rig installation. oil and gas industry business concepts. - 石油工人 個照片及圖片檔
engineer checks shipment of chemicals at oil and gas industry pipeline job site. - 石油工人 個照片及圖片檔職業, 工地安全帽, 工程師