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Look through the magnifying glass to the Particle of dust and dirt inside of an air conditioner. PM2.5 pollution in living room. Poor air quality causes respiratory diseases.
Portrait of child boy during class at school
Electrician holding electric outlet plug for repair or maintenance and fixing in office room. Dangerous of electric spark from short circuits and fire in house.
Scandinavian style living room interior.
Home interior with cozy chairs and houseplants in afternoon sunshine
Electrical power generator in large building interior
Human resource management technology (HR), Human resource manager touching human resource network structure and checks the CV online to choose the perfect employee for company, Effective recruitment.
Group of students raising their hand and asking question to the teacher in an IT class - education concepts
Close-up Air conditioner technician hand check fill refrigerant liquid and maintenance condenser unit, Home care service
An adorable multiracial three year old girl wearing flotation devices on her arms smiles as her mother helps her swim during a lesson at an indoor aquatic park.
The ferry cockpit will all necessary instruments to travel at boat approaching La Graciosa island, one of Canary Islands, Spain
A pilot sitting at the controls of a light aircraft, North Eastern Iceland.
Electrical engineer inspects the electrical control board of a crane before putting it to use on a construction site
Vital signs monitor, digital and hospital with EKG machine, electronic and medical equipment to help. Emergency, stats and computer in ICU, clinic and healthcare, life and science with technology
3D illustration
Speedboat snorkeling tour boat to Similan and Surin Islands. This is moored ready to take on passengers for an early morning journey to Surin Islands to snorkel on the reefs and see the tropical fish. There are fishing boats moored at the dockside.
Payerne, Switzerland - September 4, 2014: Italian Army Agusta A129 Mangusta attack helicopter on approach to land at Payerne Airport.
A young female teacher squats next to a little boy of Asian descent sitting at a desk, to help him use a tablet for schoolwork during class.
Digital Composite Image Of Multi Colored Cables With Binary Codes Against Blue Background
Old shovel, pick axe, axe attached to the military vehicle. Tools attached to the side of the car.
Missiles ready to launch, weapons of mass destruction, preparation for war and fight against terrorism against the blue of the peaceful sky.
Happy Latin American medical students talking in class and sharing ideas - education concepts
Artificial Intelligence Content Generator. A man uses a laptop to interact with AI assistant. AI offers functions like chatbot, generate images, write code, writer bot, translate and advertising.
A black elementary teacher with children in the classroom. They are sitting at desks having a math lesson. The teacher is a mid adult woman in her 30s. The focus is on the girl on the left in pink. She is 6 years old, multiracial, black and Hispanic.
Gloucestershire, UK - July 9, 2014: German Air Force Panavia Tornado ECR Reconnaissance aircraft on approach to land at RAF Fairford.
Man on zipline flipping to the camera
industrial background with pipes, joints, bolts and pressure tank color white with blue sky as background
Packages ready to ship at airport in istanbul turkey
View from the Kaiser-Wilhelm-Bridge to the harbor with ships, Wilhelmshaven, Germany
Vertical image of multiracial happy university students walking to class together laughing and talking. Group of young people in college campus. Higher education concept.
Free Images: "bestof:Navy 041103-F-2760K-001 Interior Communications Electrician 3rd Class James Lester, assigned to Explosive Ordnance Disposal Mobile Unit Eight (EODMU-8),"
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