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Hispanic Mechanics at a Training Class (this picture has been taken with a Hasselblad H3D II 31 megapixels camera)
decibel meter of a sound amplifier illuminated orange on black background
Young vietnamesse woman  studying in a library reading room.
Analog Power Meters of a High-fidelity Stereo Amplifier.
Close-up navigation equipment for ship control.
Group of college students in the university amphitheatre, they are sitting and doing an exam. Two professors are monitoring the students.
Empty classroom with green clean board
A multi-channel device for transmitting a signal to a wireless microphone installed in a business class, university or college. Modern wireless technologies. Selective focus
Female teacher discussing mathematics during class
Interior and equipment of old Deutsche Bahn railcars and diesel locomotive. Old railway depot in Linz, Germany. Free access without admission or fee.
Engineering Student using oscillograph at the classroom
Classroom
Young teacher after a day at the school
Modern Cockpit of a Luxury
Barcelona, Spain – August 20, 2022: A man working on a tuned yellow Hyundai Coupe with stereo and toys in the trunk
Airplane cockpit interior with throttle levers
A classroom is empty except for one curious student
Digital black screen glows with red numbers.
Historical city centre of Split, Croatia. Beautiful view of the promenade.
Submarine, Control Room, Computer, Warship, Navy
VCR digital display
The collage peoples in the class.
Close up aircraft instrument
A view of the cockpit of a military helicopter. (switches, gauges, controllers)
Graduates group on traditional hat toss
Green blackboard for writing texts. School blackboard.
Old Cockpit pilot Flight Deck display. Throttle jet cabin with control panel plane. View in windows blue sky clouds
Simple and empty Chinese musical instrument training classroom
University
Boeing 737 MAX pressurization panel
Free Images: "bestof:Gocetrajkoski9.jpg en class a own Trajkoski Goce 2009-09-15 Hi-Fi amplifiers"
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Sommerhausen BW 16.JPG
1st Class S badge USSR early.jpg
2nd Class S badge USSR later.jpg
1st Class S badge USSR later.jpg
3rd Class S badge USSR later.jpg
2nd Class S badge USSR early.jpg
3rd Class S badge USSR early.jpg
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Château de Hautefort Jardins 3.jpg
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Oasis beach in Guamache, Margarita Island.jpg
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Porte château Hautefort 30.jpg
Project 775M AZOV 2008 G2.jpg
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Project 1164 Moskva 2012 G1.jpg
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Project 1164 Moskva 2012 G2.jpg
Project 1164 Moskva 2012 G4.jpg
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Project 1164 Moskva 2012 G5.jpg
Master S badge USSR later.jpg
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Cathédrale Guadix 1.jpg
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