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Production operator opening ball valve at pipeline oil and gas wellhead remote platform to control gases and crude oil process
Male worker wearing protective clothing of repair pipe stainless argon welding industrial
Male worker wearing protective clothing of repair pipe stainless argon welding industrial
顶视图中男性工人在炼油厂的站点检查钢管和弯管
生产操作员在管道油气井口远程平台打开球阀，以控制气体和原油的石油加工过程；
炼油厂的阀弯头柱管道油气阀设备用于天然气厂压力安全
男性工人在炼油厂的站点油厂对钢管和弯管进行检查
男性工人下午检查炼油厂管道厂的油罐换热器
钢铁长管保温和管弯头处的男性工人检查——炼油厂阀门视觉检查记录管道期间的站内油厂
工人女性手持气体探测器在化学前检修孔罐处进行安全气体检测
男性工人正在对油气管道进行视觉检查，查看是否有腐蚀、生锈、泄漏等情况
炼油厂用于泵管 线油和气阀的工厂设备
炼油厂的阀弯头柱管道油气阀设备用于气厂压力安全
女性工人手持气体探测器在化学前检修孔罐处进行安全气体检测
顶视图 油桶 叉车移动 运输工人协助
超市货架上酒精产品的失焦模糊
女性工人手持气体探测器在化学检修孔罐前进行安全气体检测
腐蚀生锈的套接管蒸汽燃气泄漏管道
套接管因腐蚀生锈导致蒸汽燃气泄漏的管道
工人手持气体检测仪在储罐前的人孔处进行安全气体检测
工人女性手持气体探测器在化学前检修孔罐处进行安全气体检测
炼油厂阀门目视检查记录管道期间，男性工人在石油工厂站内对钢管保温和弯管进行检查
炼油厂的阀弯头柱管道油气阀设备用于天然气厂压力安全
Male worker inspection at steel long pipes and pipe elbow in station oil factory during refinery valve of visual check record pipeline oil
Production operator opening ball valve at pipeline oil and gas wellhead remote platform to control gases and crude oil process
Production operator opening ball valve at pipeline oil and gas wellhead remote platform to control gases and crude oil process
Pipe line oil and gas valves at gas plant pressure safety valve
Male worker on site, rack pipeline construction workers on a scaffold, refinery
Male worker on site, rack pipeline construction workers on a scaffold, refinery
Architect on site construction roof workers on a scaffold
Architect on site construction roof workers on a scaffold
Architect on site construction roof workers on a scaffold
Architect on site construction roof workers on a scaffold
Architect on site construction roof workers on a scaffold
Architect on site construction roof workers on a scaffold
Architect on site construction roof workers on a scaffold
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