Older tiles on Discovery look streaked from the plasma environment of re-entry. They stand out in photos because new tiles still appear a pristine dark black.
“发现号”上较老的板片的条纹是其在返回途中地球大气层等离子体环境造成的,在照片中它们更扎眼的原因是新的板片还保持着原来的深黑色。
Recent efforts to branch out into new areas, such as a re-entry into mobile telecoms using network capacity leased from other firms, have not come to much.
最近BT正努力拓展到新的领域,如通过租用其他公司的网络容量重新打入移动通信领域,可惜收效甚微。
Experts had calculated that perhaps as much as 1.6 tonnes of wreckage - more than half the spacecraft's launch mass - could have ridden out the destructive forces of re-entry and hit the planet.
专家们经计算,残骸可能重达1.6吨(超过航天飞船发射重量的一半),可以经受得住再返回所造成的阻力,并撞上地球。
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