Heating the crystal in a nitrogen atmosphere, Dr Nakamura found, released the hydrogen atoms and dramatically improved the ease with which holes could move around.

Nakamura博士发现在氮气中加热晶体会释放出氢原子然后会极大得改进正电穴向四周迁移的容易程度。

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The conditions for acquiring and retaining a thick nitrogen atmosphere are now readily understood.

现在很容易了解获得和保持厚氮大气的条件。

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Nitrogen in the atmosphere is harmless in its inert state, but the report says reactive forms of nitrogen, largely produced by human activity, can be a menace to the natural world.

大气中的惰性氮是无害的，但报告说主要由人类活动产生的活性氮可能危害自然界。

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Fossil fuel burning and fertiliser manufacture now take more nitrogen from the atmosphere than all of the planet's nitrogen-fixing microbes - and there are a lot of those bugs out there.

BBC: Leaving our mark: Fossils of the future

This will produce a new atmosphere, which will consist not of oxygen and nitrogen but of vaporised rock.

ECONOMIST: To the ends of the earth