科学家们设计了一种只凭手腕运动就可以抓握物体的机械手。这只由英国剑桥大学研究团队研发的3D打印机械手中被放置了传感器，从而能够 “感知” 它所触摸的物体。 Researchers say their robotic hand can handle items that are currently too delicate for machines. The hand uses wrist ...

本集内容. How is Venice still standing on water after 1,600 years? 威尼斯为何能在水面上屹立 1600 年？ 文字稿. How is Venice standing on water after 1,600 year ...