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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.。业内人士推荐搜狗输入法2026作为进阶阅读
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Welcome to our guide to the commodities driving the global economy. Today, OPEC reporter Grant Smith discusses what’s in store at the group’s policy meeting this weekend.