十亿分之一米是一纳米。
一纳米是十亿分之一米。
而现在的晶体管尺寸可用十亿分之一米（纳米）计算。
Now the size of transistors is measured in billionths of a metre.
其间距离大约为300纳米时(1纳米是十亿分之一米)，秋千开始移向小球。
At a distance of about 300 nanometres (a nanometre is a billionth of a metre), the seesaw began to tilt towards the ball.
穿过芯片的电子可以“识别”某一磁场，该磁场每隔几百纳米(十亿分之一米)就变换一次方向。
Electrons flowing through the chip would "see" a magnetic field that flips from one direction to the opposite every few hundred nanometres (billionths of a metre).
研究者制造这些新物质的方法已日渐明朗，他们将在以十亿分之一米计量的纳米级别上进行创造。
The way researchers will construct these materials is now becoming clear. They will engineer them at the nanoscale, where things are measured in billionths of a metre.
研究者制造这些新物质的方法已日渐明朗，他们将在以十亿分之一米计量的纳米级别上进行创造。
The way researchers will construct these materials is now becoming clear.They will engineer them at the nanoscale, where things are measured in billionths of a metre.
与在电极上凿孔不同的是，他们在电极上覆盖一层碳纳米管，每个只有5纳米(十亿分之一米)宽。
Instead of digging holes in the electrodes, they are coating them with a forest of carbon nanotubes, each five nanometres (billionths of a metre) wide.
关键点是虽然电极和电解质显然是固态的，它们事实上却具有完美的纳米(一纳米即十亿分之一米)构造。
The crucial trick is that although both the electrodes and the electrolyte appear solid, they are actually finely structured at the nanometre scale (a nanometre is a billionth of a metre).
现在许多炒作都是围绕纳米这一技术做文章—其想法是通过操控十亿分之一米尺度的物体可以生产出有用的产品。
Much hype has surrounded the idea of nanotechnology-the thought that manipulating objects on scales of a billionth of a metre will produce useful products.
在波导内的每个微小的通道都只有60-120纳米宽（十亿分之一米），比1500纳米波长的红外激光传播的光道还要窄。
Each of the tiny channels within the waveguide is only 60-120 nanometers (billionths of a meter) wide, thinner than the 1,500 nanometer wavelength of the infrared laser light channeling through them.
纳米碳管的直径仅有一米的十亿分之一长，是最理想的金属针。
Carbon nanotubes, which are just billionths of a metre across, seemed the perfect needle.
在光子晶体中，其成分与光的波长是同样的大小——几百纳米(一米的十亿分之一)。
In a photonic crystal the elements are about the same size as the wavelength of light-a few hundred nanometres (billionths of a metre).
水滴的直径可微小至一纳米（一米的十亿分之一）。
The water droplets themselves can be as small as a nanometre (a billionth of a metre) across.
量子点是一些微型晶体，材质为几十个原子宽，或几纳米(一米的十亿分之一)宽的半导体材料。
Quantum dots are tiny crystals of semiconducting material just a few tens of atoms, or a few nanometres (billionths of a metre), across.
研究人员在漆黑的实验室里聚集了细小到只有一米的十亿分之一个的纳米物质的扁平带子 。
Researchers assembled flat ribbons of nanoparticles - tiny bits of matter only billionths of a meter long - in a darkened laboratory.
但此设计要求硅片厚度不超过5纳米(一米的十亿分之一)。
But the design requires that this silicon layer be no more than five nanometres (billionths of a metre) deep.
而其中直径为5毫微米(毫微米：一米的十亿分之一)的金属颗粒表面会自动包裹上一层偶氮苯光感涂层。
The metal particles, which were five nanometres (billionths of a metre) across, were themselves coated with a photosensitive compound called azobenzene.
这七层，每层都是不一样的，准确地说，厚度是不同的，厚度从13到688纳米不等(一纳米为一米的十亿分之一)。
Each of these seven layers is of a different, precisely defined thickness, ranging from 13 to 688 nanometres (or billionths of a metre).
这七层，每层都是不一样的，准确地说，厚度是不同的，厚度从13到688纳米不等(一纳米为一米的十亿分之一)。
Each of these seven layers is of a different, precisely defined thickness, ranging from 13 to 688 nanometres (or billionths of a metre).
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