Engineer take water from wastewater treatment pond to check the quality of the water. After going through the wastewater treatment process. - Stock Photo & Image

Asian man petrochemical engineer working at oil and gas refinery plant industry factory,The people worker man engineer work control at power plant energy industry manufacturing

Young engineer with smartphone standing outdoors by oil refinery, making phone call. Copy space.

Asian man petrochemical engineer working at oil and gas refinery plant industry factory,The people worker man engineer work control at power plant energy industry manufacturing

Picture of construction site engineer looking at construction plan

Engineers work place to keep liquid helium,preventive maintenance schedule checking,Thailand people

Caucasian male young engineer in white helmet and yellow uniform standing in factory and working at laptop. Engineering concept. Indoor. Man typing on keyboard of computer at plant.

Engineer railway under inspection and checking construction process train and railroad station .Engineer wearing safety uniform and helmet by holding document in work.

Engineer under inspection and checking construction process railway switch and checking work on railroad station .Engineer wearing safety uniform and safety helmet in work.

Worker under checking the waste water treatment pond industry large to control water support industry,she wearing document on hand and wearing safety uniform.

A dock worker under discussion about dock container shipping warehouse document, they wearing safety uniform hard hat.

Portrait engineer under inspection and checking construction process railway and checking work on railroad station .Engineer wearing safety uniform and safety helmet in work.

Portrait dock worker under working and checking production process on dock container warehouse by document ,wearing safety uniform ,ear phone and smoking cigarette.

Engineer under checking the industry cooling tower air conditioner is water cooling tower air chiller HVAC of large industrial building to control air system ,wearing mask for protect pollution.

Worker under checking the waste water treatment pond industry large to control water support industry,she wearing document on hand and wearing safety uniform.

Portrait engineer under inspection and checking construction process railway and checking work on railroad station .Engineer wearing safety uniform and safety helmet in work.