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                                        Chapter 17 Inquiry
                                
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... logy, and was classified according to different attributes such as load and speed. There are three models of small, medium and large, each drone is equipped with a safe-level transport box, comes with artificial intelligence, is equipped with cameras, alarm security system and Polaris positioning system, and knows how to fly to the supply station by itself during long-distance transportation. Charge it, and send it to the express cabinet or sign for it in person according to the user's needs by ...
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