This creates what is known as a critical mass of nuclear material, which releases its energy instantaneously as atoms inside it split in an uncontrolled chain reaction.

这会造成核原料所谓的临界质量，当其中的原子在无法控制的连锁反应中***时，能在瞬间开释出能量。

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Uncontrolled inflammation in systemic inflammatory response syndrome (SIRS) was actually a mediator disease, mainly caused by chain reaction of cytokine.

全身炎症反应综合征(SIRS)中的失控性炎症，实际上是一种介质病，主要由细胞因子链锁反应所致。

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There are two knotty problems in spleen transplantation, graft versus host reaction (GVHR) and graft hypersplenism, which are very dangerous and uncontrolled.

移植物抗宿主反应(GVHR)和移植脾亢是脾移植的两个棘手问题。

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Or they can be introduced with uranium 235, which in this process has a much lower risk of an uncontrolled reaction than it does in today's nuclear plants.

WSJ: After Japan's Earthquake and Fukushima Disaster, Matt Ridley on Gas-Fired Generation and Thorium | Mind & Matter

The uncontrolled chain reaction ran on for nearly 20 hours before it was finally stopped.

CNN: 'We're Scared for Our Baby'

In Japan in 1999, an uncontrolled nuclear chain reaction at a uranium-reprocessing plant killed two employees and spewed radioactive neutrons over the countryside.

WSJ: Nuclear Issues Put Focus on Japan Regulators