电影: Technical Scientific Films
- 1971
Too Close for Comfort (1971)
Too Close for Comfort01971HD
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![Too Close for Comfort]()
- 1979
Computer Aided Train Planning (1979)
Computer Aided Train Planning01979HD
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![Computer Aided Train Planning]()
- 1952
The Basic Principles of Lubrication (1952)
The Basic Principles of Lubrication01952HD
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![The Basic Principles of Lubrication]()
