The US interior department has grounded hundreds of Chinese-made drones while it investigates the security of its entire drone programme, one of the biggest in the US government.
美国内政部(Department of the Interior)已停飞数百架manbetx3.0 制造的无人机,同时对其整个无人机计划的安全性展开调查。该部拥有美国政府部门最大规模的无人机机队之一。
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