That brings the resolution to half a micron, or 500 nanometres.

这样便将图象分辨率提高到了0.5微米或500纳米。

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This is because the wavelength of visible light is longer than 200 nanometres.

因为可见光的波长大于200纳米。

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The researchers found that they had to close the distance to just 5-20 nanometres.

研究人员发现，他们必须使这个距离达到5-20纳米才行。

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Despite being just 60 nanometres across, each of his dots contains millions atoms of gold.

ECONOMIST: How to build tiny devices using miniature stencils

Conventional transistors typically have a gate length of 180 billionths of a metre (nanometres).

ECONOMIST: Transistors: A tall story | The

But the design requires that this silicon layer be no more than five nanometres (billionths of a metre) deep.

ECONOMIST: Transistors