ALTITUDE ACQUIRE, a digital flight control system mode to transition from climb (or descend) to level flight.

高度截获，一种数字式飞行操纵系统，从爬升(或下降)改平的模式。

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The experimental results show that the system can acquire the altitude information in real time and with sufficient precisions.

初步实验结果表明，该系统能够实时获取高程变化信息，并具有较高的测量精度。

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This will acquire pictures of land use and vegetation changes from an altitude of 820km, maintaining an important data series started by the French Spot satellites in the late 1990s.

BBC: Esa's Vega rocket puts Proba-V vegetation mission in orbit