translation.en: So this shows what would eventually be part of a micro-robot leg, and you can see the silicone rubber joints and there's an embedded magnet that's being moved around by an external magnetic field.
translation.zh: 这段视频展示的就是 最终要成为机器人的腿的部件， 你们可以看到，硅橡胶的接合点那儿 嵌入了一块磁铁，外部的磁场驱动 这个部件移动。