Последние добавленные видео:
how-pantagraph-works
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4 years ago
906101 4 years ago 4:00working principle of pantograph | how does pantograph works?
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3 years ago
2571090 3 years ago 10:14The Brilliant Engineering behind Pantographs!
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3 years ago
3117998 3 years ago 8:58The Fascinating Engineering behind Electric Trains!
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2 years ago
2945 2 years ago 9:05Introduction to Parts of Pantograph