Pose estimation is a key issue in mobile robots and important to moving objects tracking, robot navigation, map building, etc.

位姿估计是移动机器人研究中的一个关键问题，对于运动目标跟踪、机器人导航、地图生成等具有重要意义。

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Maneuver detection is a key issue in the multiple-model target tracking applications.

机动检测是多模型目标跟踪中的一个关键问题。

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Gerra writes that a key issue for SanDis is that NAND flash content in ultrabooks is tracking far below expectations, with an average of 32-40 GB, rather than initial speculation of 128-256 GB, as consumer opt for models with hybrid drives that still include spinning media rather than shunning traditional hard drives altogether.

FORBES: SanDisk: Baird Cuts Rating On Weakness In NAND Demand