Today's actuators, even the state-of-the-art ones, are still largely made from metals, hard plastics and electronics. But there are other ideas around. Tolley and his colleagues have been working on a very different approach.
Израиль нанес удар по Ирану09:28
，这一点在夫子中也有详细论述
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Фото: Владимир Вяткин / РИА Новости