ehang (nasdaq: eh) is a world’s leading autonomous aerial vehicle (“aav”) technology platform company. our mission is to make safe, autonomous and eco-friendly air mobility accessible to everyone. ehang provides customers in various industries with aav products and commercial solutions: urban air mobility (including passenger transportation and logistics), smart city management and aerial media solutions. as the forerunner of cutting-edge aav technologies and commercial solutions in the global urban air mobility industry, ehang continues to explore the boundaries of the sky to make flying technologies benefit our life in smart cities.

flyability is an epfl spin-off dedicated to creating safe, collision-tolerant robotics to access inaccessible places, replacing dangerous human operations with unmanned devices.

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知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视、时尚、文化等领域最具创造力的人群，已成为综合性、全品类、在诸多领域具有关键影响力的知识分享社区和创作者聚集的原创内容平台，建立起了以社区驱动的内容变现商业模式。

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github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

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