spring motorsの例文

例文

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1. The Filmo 70 was the first spring motor-driven 16mm camera.
2. The spring motor was replaced by an electric motor.
3. A spring motor attachment was added in 1923 to allow flexible handheld filming.
4. Its release was delayed and already the first camera " Robot I " included its hallmark spring motor.
5. Each winding of the spring motor was good for about 25 pictures, half a roll of film.