L'ingegnere sotto controllo del condizionatore d'aria della torre di raffreddamento del settore è il refrigeratore d'aria della torre di raffreddamento ad acqua HVAC di grande edificio industriale per controllare il sistema d'aria, indossando una maschera per proteggere l'inquinamento. - Foto e immagini stock

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.

Environmental engineer working at wastewater treatment plant, Water recycling plant for reuse

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.

Telecommunication engineers work at cell towers for 5G cell phone signals,Network tower maintenance technicians

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

Environmental engineers work at wastewater treatment plants,Water supply engineering working at Water recycling plant for reuse,Check the amount of chlorine in the water to be within the criteria.

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

High-Tech Factory: Confident and Professional Female Engineer Wearing Safety Jacket and Hard Hat Holding and Working on Laptop Computer. Modern Bright Industrial Facility. Low Angle Shot

Portrait workers under inspection and checking production mask manufacture process on station by wearing safety mask to protect for pollution and virus in factory

Portrait engineer under inspection and checking production process on factory station by wearing safety mask to protect for pollution and virus in factory.

Portrait woman worker under inspection and checking production process on factory station by wearing safety mask to protect for pollution and virus in factory.

Portrait worker under inspection and checking production process on factory station and safety mask face to protect for pollution and virus in factory.

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

Engineer take water from wastewater treatment pond to check the quality of the water. After going through the wastewater treatment process.

A Manager and dock worker under discussion about dock container shipping warehouse document, they wearing safety uniform hard hat ,face mask and hold radio communication.

Worker under checking the waste water treatment pond industry large to control water support industry ,wearing mask for protect for virus and pollution.