translation.en: And we've had the opportunity to work with some very advanced arms that were funded by the U.S. military, using these prototypes, that had up to 10 different degrees of freedom including movable hands.
translation.zh: 我们有幸操作了美军资助的 一些先进假肢 有了这几个模型 我们得到了包括可活动手掌在内的 10个自由度