1月28日消息，美国麻省理工麻省理工学院（MIT）林肯实验室的一个团队开发了一种几乎无声工作的螺旋桨，可使目前的多旋翼无人机在声音上的烦扰大大减少。
As it currently stands, this question is not a good fit for our Q&A format. We expect 开发者_JAVA技巧answers to be supported by facts, references,or expertise, but this question will likely so
加载中,请稍侯......