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- Видео 2
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UVSAR
Добавлен 8 мар 2009
What's inside a wind turbine?
An overview of the layout of utility-class wind turbine generators - where are the major components, what do they do, and what differences can be found between models and size ranges.
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Видео
Manual handling - safe lifting techniques
Просмотров 135 тыс.15 лет назад
Anatomical 3D views of correct and incorrect posture for lifting