
US regulators have granted the first licences for unmanned commercial aircraft to fly well beyond the sight of a pilot, a move seen by the industry as a catalyst for mainstream drone use.
美国监管机构首次向无人驾驶商用飞机发放了飞行许可证,允许它们在导航员的视线之外飞行。业内人士认为,此举将推动无人机的主流使用。
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