Due to the restrictions of ground field, distance, circumstances and dangerous factors, it is not propitious for us have these controlled experiment in real-time control system.

在实时控制系统中由于受到场地，距离，环境以及危险性等多种原因的限制，不利于我们进行这些实时控制。

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Albert Belle hit a ground ball that appeared destined for right field.

阿尔伯特·拜尔击出一记看似飞向右场的地滚球。

《柯林斯英汉双解大词典》

Sometimes, the ground at an oil field may subside as oil is removed.

有时，油田的地面可能会随着石油的开采而下沉。

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On May,22 they even launched a ground attack on Kandahar air field, NATO's sprawling military base outside the city.

VOA: standard.2010.05.26

It then plunged some 300m (1, 000ft) to the ground in a field west of the city.

BBC: Egypt suspends Luxor balloon flights after deadly crash

Eventually, Jeter was able to learn new ways to strengthen the muscles in his legs and also create strategies on how to field ground balls by using efficient angles.

FORBES: Connect

Turner occupies an interesting ground in his field.

FORBES: Evolution and Embodied Physiology