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.
美國企業正在部署數量空前的無人機,而無人機的用途正在超越攝影,拓展至地圖繪制、數據收集,甚至追蹤犯罪嫌疑人。
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