a man demonstrates the behind the scenes of a factory
a man describing some thing about the industry
a man discusses wave frequencies through metal
a man explaining something new
a man in a suit is explaining something to another man while looking at a metal track
a man is demonstrating a device
a man is discussing a new technology
a man is discussing diagnostic techniques on their project
a man is explaining his research
a man is talking about diagnostic technology
a man is talking about technology
a man is talking on the news
a man speaks to a camera for a video segment
a man talking about a laboratory test in russian with someone translating over him
guy speaking on film
man speaking about technology
people are playingg match
people look at walls
person talking about new technology
a man is discussing diagnostic techniques on their project