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Employees work at a Ningbo Shenma production line in Zhejiang province. CHINA DAILY With the rollout of its cutting-edge copper-aluminum composite products, Ningbo Shenma Group in Zhejiang province ...
Abstract: This paper proposes a multi-modal UAV system scheme that combines the tail-sitter layout and integrated design of the ducted wing. The tail-sitter and semi-duct complement each other. It ...
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