drop-oldest: Drops the oldest buffered data to make room. Useful for live feeds where stale data loses value.
（三）扬言实施放火、爆炸、投放危险物质等危害公共安全犯罪行为扰乱公共秩序的。
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第四十六条 违反有关法律法规关于飞行空域管理规定，飞行民用无人驾驶航空器、航空运动器材，或者升放无人驾驶自由气球、系留气球等升空物体，情节较重的，处五日以上十日以下拘留。