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electrician worker checking voltage of the electric power switch in fuse board
A small group of diverse University students sit in rows of desks, as they work individually on their assignments. They are dressed casually and are focused on their work. The focus is on a female student of European decent, in the center.
Presta bicycle nipple on the rim for swapping wheels close-up
Cheerful kids spending day at school
Power cables connection using screw connectors in electrical power distribution \ncabinet.
patch cable in front of white background
Electrical engineer tests the operation of the electric control cabinet on a regular basis for maintenance.
Photo of a school classroom with wooden desks and chairs.
Beautiful African American female college student smiles while holding her eyeglasses in class. She is listening to the professor's lecture. Students are taking notes in the foreground and background.
stripped three-wire, electric cable and stationery knife. on white background.
Photo of a white smartphone charger and usb cable isolated on a white background
Car air conditioner recharge valve.
Classroom
Battery
Mobile phone, cable and charger
fireworks sparks with long tail
A little boy in elementary school, in a classroom with other students, sitting at his desk reading a book with his teacher.
electrician repair electric of elevator them check safety line.
The control room computer room equipment
Human hand using strength training equipment
inside of switching box and wire lan network
Schoolgirl writing a dictation during a class in elementary school.
Mature man take a written exam in the classroom
Pupils with raised hand on class in elementary school
High school students in a classroom.
Old socket. Switch and socket. Broken electrical appliances. Non-working tool. Dangerous wires.
The electrician works at home, the electrician assembles the elements of the electrical installation of the house
A male network manager.
fiber optical network cable
Back view of large group of school kids during the lesson in the classroom.
Free Images: "bestof:Carl Vinson 140908-N-TP834-155.jpg en Interior Communications Electrician 3rd Class Brian Bonvillain from Houma La monitors flight operations from the"
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