“边行进边工作”体制是提高陆基雷达战时生存能力的一种新途径。

The mode of march-while-operate is a new way to improve the survivability of ground -based radar in wartime.

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对航天飞机的雷达追踪，如最后精确的陆基导航，还没有开始。

Radar tracking of the shuttle, like the final accurate ground-based navigation, had not yet begun.

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