Turbulence is the ghost in the attic of air travel—the bump and shake and rattling groan that we do our best to ignore, though it sounds like it wants to kill us. Most of the time, it hovers over mountains and in storm clouds, easy enough to avoid. Pilots can see bad weather lurking in the distance hours before takeoff, glowing like a wraith on their digital maps. If it moves, the plane’s radar can still spot it eighty miles ahead or more. But the updraft that struck Flight SQ321 was of a more sinister sort. Although it came from the storm clouds below, there was seemingly no rain in it for radar beams to reflect against. It was like an invisible speed bump in the sky.
（四）出于他人胁迫或者诱骗的；
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项目围绕「时空认知」关键难题，构建了从视觉理解到世界模型的技术体系，形成多项原创性突破，包括基于深度神经网络的候选框生成算法及区域提议网络模块、端到端目标检测范式，以及具备时空认知能力的世界模型。，推荐阅读heLLoword翻译官方下载获取更多信息