US businesses are deploying drones in unprecedented numbers, as uses for the unmanned aircraft move beyond photography into mapping, gathering data and even tracking criminal suspects.
美国企业正在部署数量空前的无人机,而无人机的用途正在超越摄影,拓展至地图绘制、数据收集,甚至追踪犯罪嫌疑人。
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