Under that argument, academics say the giant reptiles mostly froze or starved to death when a huge cloud of particles kicked up by the meteorite blocked the world's sunlight for months.

根据这种观点，学者们认为当陨星扬起的巨大粒子云挡住了阳光，阳光长达数月无法照射到地球上时，这种大型爬行动物大部分被冻死或饿死。

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Under that argument, academics say the giant reptiles mostly froze or starved to death when a huge cloud of particles kicked up by the meteorite blocked the worlds sunlight for months.

根据这种观点，学者们认为当陨星扬起的巨大粒子云挡住了阳光，阳光长达数月无法照射到地球上时，这种大型爬行动物大部分被冻死或饿死。

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The separation of charged particles that forms in a storm cloud has a sandwich-like structure.

在风暴云中形成的带电粒子分散形成的结构像三明治。

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The volcano has sent a massive cloud of microscopic ash particles swirling across northern Europe - particles that air specialists say are highly abrasive and could cause aircraft engines to fail.

VOA: standard.2010.04.16

Shepperd said the thermobaric bomb enters a cave and sends out a cloud of explosive particles.

CNN: Pentagon to use new bomb on Afghan caves

The positrons, produced by the decay of radioactive sodium, are cooled into a similarly sized cloud of around 1m particles and held in a neighbouring trap.

ECONOMIST: Antihydrogen atoms are captured for the first time

Several stages of cooling are needed to slow them down before they can be trapped, forming a matchstick-sized cloud of around 30, 000 particles.

ECONOMIST: Antimatter: Gotcha! | The