The radioactive debris is produced when the core is exposed above the coolant water level and overheats.

当核心暴露于冷却水位以上并过热，那放射性碎片就会产生。

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Towns near Fukushima have responded cautiously to plans to build temporary storage sites for massive quantities of radioactive debris generated by the accident.

因为这次爆炸产生了大量的放射性碎片导致福岛周边的城镇计划建立一些临时安置点时非常的谨慎小心。

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In 1978, a nuclear - powered Soviet satellite plunged through earth 's atmosphere and disintegrated, scattering radioactive debris over parts of northern Canada.

1978年的今天，一颗苏联造的以核能为动力的卫星在穿过大气层时候发生砸裂，其具有发射性的部分残劾散落在加拿大北部。

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The protestors warn that if America shoots down a missile over Britain it would shower the country in radioactive debris.

BBC: Menwith Hill: Centre of Star Wars storm

Unlike a fallout shelter that protects from radioactive debris, the main purpose of the building was to protect from shock waves and overpressure.

FORBES: Connect

Unless it somehow managed to burrow a very long way down before exploding, such a weapon detonated beneath the earth's surface would throw up huge amounts of radioactive debris, a danger to all.

ECONOMIST: Why some weapons are best left unexplored